Master Builder

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Master Builder is the Paragon of the Engineer Monkey, which was first released in Version 32.0.

Combining major features from the Sentry Champion, Ultraboost, and XXXL Trap, Master Builder itself can shoot 3 nails at once. These nails can pin Ceramic Bloons and stun any MOAB-class Bloons (besides BAD or Boss Bloons) for a short time, and can pop all bloon types (including camo), Master Builder's main attack and its sentries will deal bonus damage to any Boss Bloons (including Elite Bosses). Each round also increases its attack speed by 30% with 0.15s minimum attack cooldown. In addition to all this, Master Builder gains the ability to manually deploy up to three specialized Mega Sentries that themselves create identical Mini Sentries.

The Master Builder is obtained by having one of each tier 5 Engineer Monkey and purchasing the Paragon upgrade, which subsequently consumes all Engineer Monkey on screen. The Degree of the Master Builder ranges from 1-100 and is determined by total cost, pop count, bonus income, upgrades, and number of Engineer Monkeys sacrificed as explained here. As with all Paragons, the Master Builder cannot receive buffs from any external sources except the Nautic Siege Core's Energizer buff and the "Paragon of Power" Monkey Knowledge (and from the bloon debuffing status effects of Cripple MOAB, Glue Storm, and Super Brittle).

Upgrading to this Paragon costs $552,500 on Easy, $650,000 on Medium, $702,000 on Hard, and $780,000 on Impoppable. To max out on manual cash sacrifices starting from v39.0, the player must spend at least $1,657,500 on Easy, $1,950,000 on Medium, $2,106,000 on Hard, and $2,340,000 on Impoppable; before v39.0, the max cash sacrifices was $250,000. With max slider, these costs increase to $1,740,375 on Easy, $2,047,500 on Medium, $2,211,300 on Hard, and $2,457,000 on Impoppable.

Quick Answers

How does the Master Builder's attack affect Boss Bloons?

The Master Builder in BTD6 employs various attacks that interact differently with bloons, including Boss Bloons. It uses a main machine gun nail attack and Mega Sentries, which are manually placed by the user and inherit the Master Builder's targeting priority. During Boss Bloon Events, the Master Builder can deliver substantial burst damage to significantly weaken or eliminate the boss. Notably, it doesn't possess any attacks that inflict reduced damage to bosses compared to other bloons.

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What makes the Master Builder the Paragon of the Engineer Monkey?

The Master Builder, as the Paragon of the Engineer Monkey, boasts a mechanical exoskeleton and the ability to fire 3 nails simultaneously. These nails can immobilize Ceramic Bloons and momentarily stun MOAB-class Bloons. The Master Builder is created by displaying one of each Tier 5 Engineer Monkey and acquiring the Paragon upgrade. Its Degree, ranging from 1-100, is influenced by factors such as total cost, pop count, bonus income, upgrades, and the number of sacrificed Engineer Monkeys.

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What types of Bloons can the Master Builder's nails pin and stun?

The Master Builder, a paragon of the Engineer Monkey, can pin and stun single-HP bloons, with the effect refreshed through repeated attacks. However, Lead, Ceramic Bloons, or Test Bloons are immune to this effect. With enhancements, the Master Builder can pin Ceramic Bloons and stun MOAB-class Bloons, excluding BAD or Boss Bloons. Additionally, the Master Builder and its sentries inflict bonus damage on any Boss Bloons, including Elite Bosses.

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What is the significance of the Master Builder in the context of Paragon Engineering in BTD6?

In the context of Paragon Engineering in BTD6, the Master Builder is a high-cost Paragon that plays a crucial DPS role. It builds its power over time through a stacking self-ultraboost and the strategic placement of Mega Sentries. Despite its high upgrade and collective T5 costs, obtaining high Paragon degrees with the Master Builder is relatively straightforward due to the advantage of extra income. Upon its release, it held the record for the most expensive single upgrade in the game.

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Description

Overview

WIP Write down a detailed description of Master Builder

The Master Builder now uses a large, mechanical exoskeleton, similar to the M.A.D. Its torso is an amber cube with a black horizontal stripe running through the frame, with a black-and-grey striped top. On its left is a huge grey bolted-on arm with an orange shoulder pauldron and an orange pincer emitting blue electricity. On its right is a similar arm with a box-shaped cannon, which is orange with a large dark-blue stripe and has a red siren light on top. The cannon itself has 2 rails and a magazine trailing into the arm. On the Master Builder’s back is a power-pack with a fan-shaped device on top, similar to Overclock and Ultraboost, with two more industrial connectors protruding from it - each of these connectors has a gun that resembles a Cold Sentry. The exoskeleton stands on a pedestal of three legs, with a black and yellow caution stripe pattern and orange feet.

The Master Builder itself wears a white helmet with a cyan U-shaped stripe on top. The helmet covers its ears and has two cyan attachments with grey covers that resemble ear defenders, similar to its third path. It wears a pair of goggles similar to Sentry Champion, although they are now dark blue and have the Overclock/Ultraboost blue circuitry pattern on them. Starting from Version 32.2, the Master Builder always has an orbiting Ultraboost-esque aura to depict self-ultraboosting.

The Master Builder's attack is a stream of nails (resembling the Engineer's projectile) that stuns MOAB-class bloons, including those below ZOMGs.

Mega Sentries are the main creation of the Master Builder. Three types of Mega Sentry are available, and up to all three of these Mega Sentries can be active at once: Red, Green, and Blue. Each Mega Sentry sits on a base of four "feet", the "neck" supporting the "head", and the "head" having a barrel and decorative mechanical parts on top; the "head" additionally holds a phillips-head screw on opposite sides perpendicular to the barrel, two antennae, a dorsal "horn", and a case at the back of its "head". The color schemes of each Mega Sentry vary, but all Mega Sentries share the same product paradigm. These special sentries can themselves create miniature Modified Paragon Sentries that fire at bloons. All of these sentries can be sold to explode manually, and Modified Paragon Sentries automatically explode after a short delay after expiring.

Every 20 degrees, the Master Builder gains a more erratic appearance, with a high tech helmet, orange pincer (turns to Light Blue at Degree 81-100), 2 tires around the seat, extra 2 lights below it's seat and a light blue light on the front of the mech. The Mega Sentries projectiles and appearances remain unchanged.

At Degree 21-40, the Master Builder

At Degree 41-60, the Master Builder

At Degree 61-80, the Master Builder

In the upgrade portrait, the Master Builder is seen readying all its new weapons while smiling.

Activated Abilities

See also: Activated Abilities (BTD6)#Master Builder

Green Mega Sentry Ability

Red Mega Sentry Ability

Blue Mega Sentry Ability

Master Builder does not automatically create its own sentries; instead, sentry creation requires user input to activate the Mega Sentry Ability. Upon pressing the Mega Sentry Ability, the Mega Sentry is prompted to be placed anywhere on screen. The type of Mega Sentry placed alternates between Green, Red, and Blue, and repeats back again for subsequent uses; additionally, the Mega Sentry Ability icon changes accordingly to that queue. If the same Mega Sentry type already exists, the old Mega Sentry will automatically explode after creation of the new Mega Sentry. This activated ability has a cooldown of 20 seconds and has a full initial cooldown, minus the transformation animation after purchasing the Master Builder.

Targeting Priorities

Master Builder targets bloons using the standard targeting priorities. It has multiple types of attacks that are shot in different styles.

• First: Targets the first bloon visible within its range.
• Last: Targets the last bloon visible within its range.
• Close: Targets the closest bloon visible within its range.
• Strong: Targets the strongest bloon visible within its range.

Master Builder has multiple types of attacks that interact with Targeting Priorities in various ways, which cannot simply be explained in a single paragraph:

• Main machine gun nail attack shoots straight movement projectiles based on main targeting priority setting of the Master Builder.
• Deployment of Mega Sentries requires user input to manually place them, and all Mega Sentries initially inherit targeting priority of the Master Builder.
• Mega Sentries each have their own unique targeting priorities and interactions. Main attack is controlled by its own targeting priority settings.
  • Red Mega Sentry shoots straight movement projectiles, three red plasma beams (resembling the sun avatar)
  • Blue Mega Sentry shoots straight movement projectiles, in the form of MAD-like blue missiles.
  • Green Mega Sentry shoots a purple laser beam (like the Plasma Accelerator) that targets the player's cursor and has has global range. This Sentry also has a "Locked" targeting option that allows it to fix its targeting in place.
• Mini Sentries have two different attacks that have different interactions with Targeting Priorities:
  • Its main plasma attacks are shot as straight movement projectiles, and follows targeting priority settings.
  • The self-destructive explosion is a zone-based attack that is locked on Close for pierce calculation purposes.

Despite being able to detect Camo Bloons naturally, Master Builder does not have the Camo Prioritization targeting priority. All Mega Sentries also detect camo but lack the Camo Prioritization targeting option. None of the mini sentries have a method of popping Camo.

Monkey Knowledge Interactions

The following Monkey Knowledge Points directly affect the Master Builder:

• Vigilant Sentries:Mini-Modified Paragon Sentry lasts +5 seconds longer.
  • Increases Mini-Modified Paragon Sentry for 19s to 24s.
• Better Sell Deals: All Monkeys sell for 5% more.
  • Increases sell potency from 70% to 75%.
• Veteran Monkey Training: All Monkeys reload time reduced by 3%.
• Global Ability Cooldowns: All Ability cooldowns for all Monkeys reduced by 3%.
• Paragon of Power: Any paragon will gain a large boost to its attack speed so long as you have no T5s of the same tower type placed

The following Monkey Knowledge Points do affect Master Builder, but only indirectly:

• Monkey Education: All Monkeys XP earn rate increased by 8%.

Creating the Master Builder

Like the other paragons The Master Builder can be created by having one of each Tier 5 Engineer Monkey on screen, at which point, the upgrade icon for the Master Builder will become available on any of the tier 5 Engineer Monkeys. Purchasing the upgrade will change the selected Engineer Monkey into the Master Builder while sacrificing every other Engineer Monkey on screen (including those belonging to co-op players). Only one Master Builder may exist at a time, even in co-op.

Degree Requirements and Attack Statistics

In addition to cosmetic changes every 20 degrees, increasing degrees will elevate the damage output of the Master Builder. The degree is dependent upon total pop count, number of tier 5 upgrades, non-tier 5 upgrades, cost, and number of sacrificed Engineer Monkeys as discussed here.

The approximate power levels for 20 degree increments are listed alongside the associated damage statistics and some general guidelines on which sacrificial investments to make.

Key for Labels

• r - Range in Units
• d - Damage
• bd - Boss damage
• ed - Elite Boss Damage
• p - Pierce
• s - Attack speed/time between attacks (or damage ticks) in seconds

Degree 1 (Base)

• 0 Power needed
• 70 Range (constant for all degrees)
• Same footprint as an Engineer Monkey. (same for all degrees)
• 1 Sentry Champion, 1 Ultraboost, 1 XXXL Trap needed (same for all degrees)

Main Guns

• 70 Range
• nail-guns- 300d, 800bd, 1600ed, 15p, 1s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to ZOMGs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (~6.67x faster) [max speed is degree independent]

Activated Ability

• 20s cooldown (20s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 100d, 350bd, 700ed, 10p, 0.2s
  • beam- 20d, 50bd, 100ed, 10p, 0.2s
    • (this works exactly like plasma accelerator)
  • When sold or replaced, they do 30000 Damage, 70000 Boss Damage, 140000 Elite boss Damage to 50 bloons within 40 Range

• Red Mega Sentry
  • 70 Range
  • plasma- 5d, 5bd, 10ed, 10p, 0.05s, 4j
  • When sold or replaced, they do 30000d, 70000bd, 140000ed to 50 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 750md, 750bd, 1500ed, 20p, each bloon uses 2p, 0.5s, creates explosion on each hit
    • explosion- 3d, 3bd, 6ed, 20p, 30r blast
  • When sold or replaced, they do 30000d, 70000bd, 140000ed to 50 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 4d, 6md, 10bd, 20ed, 5p, 0.06s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 100d, 50p within a 50r blast

Deployment

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• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (20s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Note: What is underlined is constant with all degrees

Degree 20

• At least 11,032 Power needed.
• Buying 25 0-2-2 Engineer Monkeys should comfortably get Degree 20 on all difficulties.

Main Guns

• 70 Range
• nail-guns- 358d, 1191.25bd, 2382.5ed, 19.75p, 0.7645s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (~6.67x faster) [max speed is degree independent]

Activated Ability

• 15.29s cooldown (15.29s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 120d, 521.875bd, 1043.75ed, 13.8p, 0.1529s
  • beam- 24.8d, 75.625bd, 151.25ed, 13.8p, 0.1529s
  • When sold or replaced, they do 35701d, 104126.25bd, 208252.5ed to 61.4 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 6.95d, 8.6875bd, 17.375ed, 13.8p, 0.0382s, 4j
  • When sold or replaced, they do 35701d, 104126.25bd, 208252.5ed to 61.4 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 892.5md, 1115.625bd, 2231.25ed, 26.7p, each bloon uses 2p, 0.3823s, creates explosion on each hit
    • explosion- 4.57d, 5.7125bd, 11.425ed, 25.7p, 30r blast
  • When sold or replaced, they do 35701d, 104126.25bd, 208252.5ed to 61.4 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 5.76d, 8.14md, 16.125bd, 32.25ed, 7.85p, 0.0459s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 120d, 150bd, 300ed, 61.4p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (15.29s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Degree 40

• At least 31,360 Power needed.
• Buying 25 0-2-2 Engineer Monkeys and achieving 2,040,000 combined pops (or $510,000 cash generated) across all Engineer Monkeys should comfortably get Degree 40 on all difficulties.

Main Guns

• 70 Range
• nail-guns- 420d, 1672.5bd, 3345ed, 24.75p, 0.6935s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (~6.67x faster) [max speed is degree independent]

Activated Ability

• 13.87s cooldown (13.87s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 142d, 734.25bd, 1468.5ed, 17.8p, 0.1387s
  • beam- 30.8d, 108.75bd, 217.5ed, 17.8p, 0.1387s
  • When sold or replaced, they do 41703d, 145954.5, 291909ed to 73.4 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 9.95d, 14.925bd, 29.85ed, 17.8p, 0.0347s, 4j
  • When sold or replaced, they do 41703d, 145954.5, 291909ed to 73.4 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 1042.5md, 1563.75bd, 3127.5ed, 31.7p, each bloon uses 2p, 0.3467s, creates explosion on each hit
    • explosion- 7.17d, 10.755md, 21.51ed, 31.7p, 30r blast
  • When sold or replaced, they do 41703d, 145954.5, 291909ed to 73.4 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 8.56d, 11.34md, 25.35bd, 50.7ed, 10.85p, 0.04161s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 142d, 213bd, 426ed, 73.4p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (13.87s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Degree 60

• At least 66,387 Power Needed.
• Buying 25 0-2-2 Engineer Monkeys and achieving 8,350,000 combined pops (or $2,087,500 cash generated) across all Engineer Monkeys should comfortably get Degree 60 on all difficulties.

Main Guns

• 70 Range
• nail-guns- 482d, 2234.75bd, 4469.5ed, 29.75p, 0.6481s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (~6.67x faster) [max speed is degree independent]

Activated Ability

• 12.96s cooldown (12.96s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 164d, 982.625bd, 1965.25ed, 21.8p, 0.1296s
  • beam- 36.8d, 147.875bd, 295.75ed, 21.8p, 0.1296s
  • When sold or replaced, they do 47705d, 194783.75bd, 389567.5ed to 85.4 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 12.95d, 22.6625bd, 45.325ed, 21.8p, 0.0324s, 4j
  • When sold or replaced, they do 47705d, 194783.75bd, 389567.5ed to 85.4 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 1192.5md, 2086.875bd, 4173.75ed, 37.7p, each bloon uses 2p, 0.3240s, creates explosion on each hit
    • explosion- 9.77d, 17.0975bd, 34.195ed, 37.7p, 30r blast
  • When sold or replaced, they do 47705d, 194783.75bd, 389567.5ed to 85.4 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 11.36d, 14.54md, 36.575bd, 73.15ed, 13.85p, 0.0389s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 164d, 287bd, 574ed, 85.4p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (12.96s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Degree 80

• At least 120,115 Power needed
• Buying 25 0-2-2 Engineer Monkeys and achieving 9,020,700 combined pops (or $2,087,500 cash generated) across all Engineer Monkeys should comfortably get Degree 80 on all difficulties.
• Max cash slider (2,623,305$ on medium)

Main Guns

• 70 Range
• nail-guns- 544d, 2878bd, 5756ed, 34.75p, 0.6143s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (6.67x faster) [max speed is degree independent]

Activated Ability

• 12.29s cooldown (12.29s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 186d, 1267bd, 2534ed, 25.8p, 0.1229s
  • beam- 42.8d, 193bd, 386ed, 25.8p, 0.1229s
  • When sold or replaced, they do 53707d, 250614bd, 501228ed to 97.4 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 15.95d, 31.9bd, 63.8d, 25.8p, 0.0307s, 4j
  • When sold or replaced, they do 53707d, 250614bd, 501228ed to 97.4 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 1342.5md, 2685bd, 5370ed, 43.7p, each bloon uses 2p, 0.3071s, creates explosion on each hit
    • explosion- 12.37d, 24.74bd, 49.48d, 43.7p, 30r blast
  • When sold or replaced, they do 53707d, 250614bd, 501228ed to 97.4 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 14.16d, 17.74md, 49.8bd, 99.6ed, 16.85p, 0.0369s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 186d, 372bd, 744ed, 97.4p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (12.29s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Degree 91 (Single Player Max w/o Geraldo)

• At least 159,085 Power Needed (power value: 160,000)
• Buying 25 0-2-2 Engineer Monkeys and and achieving 16,200,000 combined pops (or $4,050,000 cash generated) achieved across all Engineer Monkeys should comfortably get Degree 91 on all difficulties.
• Max cash slider (2,623,305$ on medium)

Main Guns

• 70 Range
• nail-guns- 579d, 3058bd, 6116ed, 37.5p, 0.5984s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (6.67x faster) [max speed is degree independent]

Activated Ability

• 11.97s cooldown (11.97s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 199d, 1348bd, 2696d, 28p, 0.1197s
  • beam- 47d, 208bd, 416ed, 28p, 0.1197s
  • When sold or replaced, they do 57009d, 266018bd, 532036ed to 104 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 18.5d, 37bd, 74ed, 28p, 0.0299s, 4j
  • When sold or replaced, they do 57009d, 266018bd, 532036ed to 104 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 1425md, 2850bd, 5700ed, 47p, each bloon uses 2p, 0.2992s, creates explosion on each hit
    • explosion- 14.7d, 29.4bd, 58.8ed, 47p, 30r blast
  • When sold or replaced, they do 57009d, 266018bd, 532036ed to 104 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 16.6d, 20.4md, 56bd, 112ed, 18.5p, 0.0359s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 199d, 398bd, 796ed, 104p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (11.97s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Degree 100 (Max)

• 200,000 Power needed.
• Co-Op game mode Or Paragon Power Totems required.
• Having 9 additional tier 5 Engineer Monkeys, or 20 Paragon Power Totems, either 25 0-2-2 Engineer Monkeys, and achieving 16,200,000 combined pops (or $4,050,000 cash generated) across all Engineer Monkeys on screen should comfortably get Degree 100 on all difficulties.

Main Guns

• 70 Range
• nail-guns- 610d, 3622.5bd, 7245ed, 40p, 0.5869s per nail gun (all 3 nail guns are independent)
  • on hit, applies pinned status on up to ceramics: bloon can’t move for 5s
  • on hit, applies stun status on up to zomgs: bloon can’t move for 5s
  • nail-guns attack gets +30% attack speed each round additively, maxes at 0.15s (~6.67x faster) [max speed is degree independent]

Activated Ability

• 11.74s cooldown (11.74s for initial cooldown), cycles between spawning Green, Red, and Blue Mega Sentries in that order.

Sentries

• Green Mega Sentry
  • 70 Range
  • endpoint- 210d, 1597.5bd, 3195ed, 30p, 0.1174s
  • beam- 110d, 247.5bd, 495ed, 30p, 0.1174s
  • When sold or replaced, they do 60010d, 315022.5bd, 630045ed to 110 bloons within 40r

• Red Mega Sentry
  • 70 Range
  • plasma- 20d, 45bd, 90ed, 30p, 0.0293s, 4j
  • When sold or replaced, they do 60010d, 315022.5bd, 630045ed to 110 bloons within 40r

• Blue Mega Sentry
  • 70r
  • missile- 0d, 1500md, 3375bd, 6750ed, 50p, each bloon uses 2p, 0.2934s, creates explosion on each hit
    • explosion- 16d, 36bd, 72ed, 50p, 30r blast
  • When sold or replaced, they do 60010d, 315022.5bd, 630045ed to 110 bloons within 40r

• Modified Paragon Sentry
  • 50r
  • plasma- 18d, 22md, 67.5bd, 135ed, 20p, 0.0352s, lasts for 19s
    • spawned every 6 seconds by each Mega Sentry (same for all degrees)
  • When expired: 210d, 472.5bd, 945ed, 110p within a 50r blast

Deployment

• Mega Sentries: Cycles between Green, Red, Blue. Depends on Mega Sentries Ability (11.74s cooldown) for rate of deployment.
• Modified Paragon Sentry: 6.0s cooldown

Troubleshooting

See Paragons#Troubleshooting:

Types of Sentries

Master Builder can build up to three Paragon Sentries on the map: Green, Red, and Blue. Master Builder's Mega Sentry Ability enables the deployment and redeployment of each Paragon Sentry with a 20 seconds cooldown and has a 6.67s initial cooldown, in order of Green, Red, and Blue Sentries. Once the cycle has completed, any duplicate types of Mega Sentries are immediately destroyed. Each type of Mega Sentry is specialized in a unique attacking style. All Mega Sentries can regularly produce Modified Paragon Sentries. If a Mega Sentry is sold, it and its mini Sentries will immediately explode, while selling the Master Builder will destroy all sub-towers associated in its sub-tower "family".

Like ordinary Paragons, all Sentries cannot receive external buffs. However, Mega Sentries can be picked up with Door Gunner (example shown here).

Red Sentry Paragon

Red Sentry Paragon is one of three Mega Sentries built by the Master Builder. Alongside spawning Modified Paragon Sentries, the Red Mega Sentry attacks bloons by producing sunrays in a similar way to a cross between Sun Avatar and The Anti-Bloon, shooting four red sunrays per shot in an angular spray. Can detect camo.

• Damage Type: Plasma
• Camo Detection: Yes
• Damage: 5, +5 (Elite Boss) [Degree 1]
• Pierce: 10 [Degree 1]
• Range:: 70
• Attack Speed: 0.05s [Degree 1]
• Targeting Priorities: First, Last, Close, Strong

Green Sentry Paragon

Green Sentry Paragon is one of three Mega Sentries built by the Master Builder. Alongside spawning Modified Paragon Sentries, the Green Mega Sentry attacks bloons by producing a beam of purple plasma that resembles and operates like Plasma Accelerator. Can detect camo.

• Damage Type: Plasma
• Camo Detection: Yes
• Damage: Varies
  • Laserbeam pointer: 100, +250 (Boss), +350 (Elite Boss) [Degree 1]
  • Laserbeam: 20, +30 (Boss), +50 (Elite Boss) [Degree 1]
• Pierce: 10 [Degree 1]
• Range: 70
• Attack Speed: 0.2s [Degree 1]
• Targeting Priorities: Normal, Locked

Blue Sentry Paragon

Blue Sentry Paragon is one of three Mega Sentries built by the Master Builder. Alongside spawning Mini Paragon Sentries, the Blue Mega Sentry fires a rocket similar to the M.A.D, dealing damage and extra damage to MOAB-Class Bloons. Can detect camo.

• Damage Type: Normal
• Camo Detection: Yes
• Damage: Varies
  • Missile: 0, +750 (MOAB-class), +750 (Elite Boss) [Degree 1]
  • Explosions: 3, +3 (Elite Boss) [Degree 1]
• Pierce: 20 (missile, creating explosions uses 2 pierce, 10 explosions), 20 (explosion pierce) [Degree 1]
• Range:: 70
• Attack Speed: 0.5s [Degree 1]
• Targeting Priorities: First, Last, Close, Strong

Modified Paragon Sentry

Modified Paragon Sentry is a miniature sentry that is deployed by all Paragon Sentries. All Modified Paragon Sentries are identical in functionality; shooting plasma balls like a typical Champion Sentry. Just like Champion Sentries, they explode 19 seconds after deployment. Can detect camo. Is affected by Vigilant Sentries Monkey knowledge, increasing that lifespan to 24s.

Plasma:

• Damage Type: Plasma
• Camo Detection: Yes
• Damage: 4, +2 (MOAB-Class), +4 (Boss), +10 (Elite Boss) [Degree 1]
• Pierce: 5 [Degree 1]
• Range:: 50
• Attack Speed: 0.06s [Degree 1]
• Targeting Priorities: First, Last, Close, Strong

Explosion:

• Damage Type: Plasma
• Camo Detection: Yes
• Pierce: 50 [Degree 1]
• Damage: 100 [Degree 1]
• Range: 50

Costs

WIP Fill the rest of the data in this page (also maybe refine the entire section for all Paragon articles?).

Like all Paragons, which are able to sacrifice other towers, Master Builder has a complex set of costs.

Data updated as of Version 35.0.

Quick Reference Costs

Assumes normal undiscounted costs of each tower.

Quick reference costs of some popular variants of Master Builder:

Combos written for the above table:205

• Vanilla Master Builder: The cheapest Master Builder at raw cost, using only 5-0-0, 0-5-0, and 0-0-5.
• Vanilla Master Builder + 25x 0-2-2 (exactly 100 upgrades): Uses vanilla costs plus coverage of the 100 upgrades worth of sacrifices. Uses the cheapest upgrades for the Engineer, the 0-2-2 Engineer with Deconstruction and Pin. This results in a Degree 20 Paragon (degree 21 on Hard and Impoppable).
• Vanilla Master Builder + 17x 2-4-0 (just over $250k sacrifices on Medium): Uses vanilla costs plus coverage of the $250k worth of sacrifices. Uses only the most expensive Engineer option, the 2-4-0 Overclock.
• Vanilla Master Builder + 14x 2-4-0 + 6x 2-0-4 (just over $250k sacrifices on Medium): Uses vanilla costs plus coverage of the $250k worth of sacrifices. Uses a mix of the most expensive Engineer option, the 2-4-0 Overclock, with a number of 2-0-4 Bloon Traps.

Arbitrary definitions for convenience in this table:

• Vanilla: Only a single 5-0-0, 0-5-0, and 0-5-0.

Cost Formula

Lists all three unique Tier 5 upgrades without crosspathing, as well as all possible Tier 4 upgrades without crosspathing, and all T1-T2 upgrades collected together for each path. Use the table below to start evaluating into the equation further down. The costs for each entity are listed with their prices on all four game modes (Easy, Medium, Hard, Impoppable), along with a rate of max sacrifices on Medium as "$250k/Cost (Medium)" for whole T4 towers only. T5's only contribute to the power requirements for the T5 towers regardless of how many T5 towers are on screen.

Where T(x,y,z) and C(x, y, z) are functions with three parameters corresponding to tier numbers, S1 and similar are the number of Tier 4 upgrades of each path, and L1 and similar are the sums of Tier 2 crosspaths from each of the Tier 4 upgrades:

T(5,0,0) + T(0,5,0) + T(0,0,5) + S1 * T(4,0,0) + S2 * T(0,4,0) + S3 * T(0,0,4) + L1 * C(2,0,0) + L2 * C(0,2,0) + L3 * C(0,0,2)

Substitute each of these functions with the respective tower costs (e.g. Sentry Champion → T(5,0,0) → $36,375 if Medium prices are used). Use Wolfram Alpha or similar to plonk in specific combinations.

Cash Sacrifices

• Cash : Power: Ratio of cash required to gain 1 power. Maximum power gained from cash sacrifices is 60,000 power.
• Max Manual Sacrifices: Maximum amount of cash required to max out power via cash sacrifices by only using placed towers, irrespective of non-impossibility in practice.
• Max Slider Sacrifices: Maximum amount of cash required to max out power via cash sacrifices by only using the cash slider.

Strategy

See also: Paragons: Strategy

Summary

The Master Builder is a DPS-oriented Paragon whose main damage comes from up to three special Mega Sentries that produce their own plasma sentries and unique attacks. These sentries can be placed nearly anywhere on the map, allowing for long-range damage potential. One major asset of the Master Builder comes from its Mega Sentry explosions, which can be utilized for massive on-demand damage. This damage is particularly strong against bosses. For Freeplay runs, Master Builder's self-buffing Overclock effect and ability to stun Bloons below BADs give it a good supporting role outside of pure DPS. As such, positioning is key for the main Paragon and its Mega Sentries.

Like Navarch of the Seas, Master Builder is considerably easier to accumulate pops compared to other Paragons, as it has a quite expensive Tier 4 option available in the form of Overclock, and most importantly also has an income generation option in the form of Bloon Traps. In the process of strategizing maximum pops, make use of the Sentry Champion and XXXL Trap for accumulating the biggest contribution of pops. The use of multiple Overclocks to boost every other tower involved in maximizing pops for the Engineer may also help reach the maximum pop count for Paragon Degrees, or simply boost farm production.

Tips

• To get a degree 20 paragon, the player can buy 25 0-2-2 Engineers with Deconstruction and Pin to fulfill the 100 upgrade tiers requirement and $25,800 cash for a cheap degree 20 (21 on Hard/Impoppable).
• 2-4-0 Overclock is the most expensive non-Tier 5 Engineer able to be sacrificed. However, 2-0-4 and 0-2-4 Bloon Traps helps accumulate cash for a higher degree. On the same note, multiple Overclocks can be utilized for boosting higher-tier Banana Farms and maximize attack speed of all involved Engineers, making Overclock spam a great choice, especially for Boss Bloon Events where they are used to maximize the income of Banana Research Facilities.
  • 17 fully crosspathed T4 Engineers will be enough to fulfill the max tiers requirement. 17 2-4-0 Overclocks will surpass $250,000 cost, while 4-2-0 Sentry Expert is the cheapest.
• Most of the buildup of pops will come from an optimized Sentry Champion and optimized XXXL Trap. In fact, XXXL Trap has the dual benefit of high pops and cash generation, resulting in a massive pop increase. Regular Bloon Traps also are helpful as well, also accumulating extra cash per pop.
  • For the extreme late-game, XXXL Trap fares far better than Sentry Champion for pops due to the intense ramping of MOAB-Class Bloons.
  • Combine XXXL Trap with Rubber to Gold, Monkey City, and even a Support Temple for even more income. Note that the cash per pop boost from Support Temples stack, making multiple Sun Temples a viable way to quickly increase the Master Builder's degree, especially if Paragon Power Totems are unavailable.
  • Pairing the XXXL Trap with Monkey Wall Street is useful to minimize micro, as it can pick up the trap automatically. This also helps anti-stall rounds on Boss Bloon Events.
• Selling Mega Sentries is very helpful on Ranked Boss Bloon Events. Each act of selling the Mega Sentries can be used to deal extremely high damage. A Degree 60 Master Builder deals nearly 500 thousand damage per main sentry explosion. It is especially useful against Bloonarius and Dreadbloon, as Bloonarius lacks any immunity to skipping skulls, and Dreadbloon primarily only has the Support Immunity. It is necessary to constantly deploy sentries to make the most out of the Master Builder, as otherwise its damage output is subpar.
  • Try to stockpile all 3 sentries before the boss arrives for best results. This can be done by getting the Master Builder 3 rounds in advance (1 for tier 3), and placing sentries as soon as the ability is up. Optimally, have the ability up again for another explosion.
  • Against Dreadbloon, it is possible to sell the Master Builder after reaching the Support immunity in Tier 5 to open up another Paragon slot, since it is useless at that point.
• Master Builder is very useful against Normal Tier 3 and 4 Lych, Vortex, and Phayze, as one sentry explosion is usually enough to take out an entire skull. Against Lych, selling sentries heals it for 1% of its max health, so for Tier 5 Elite Lych, it is recommended to only sell them on weeks where Lych has reduced health, or use a Sun Temple to detonate them instead.
• Mega Sentry explosions can cause Vortex to skip skulls, as each explosion counts as a separate attack. To maximize burst damage, it is possible to explode four sentries nearly at once while Vortex spawns in. This involves a tight timing window for placing a new sentry and selling the Master Builder after. It is significantly easier to use this strategy with a Sun Temple, as Temples cause a delayed explosion that gives more time to explode the fourth sentry. This strategy should only be attempted for fast Ranked Boss times.
• Outside of Timed Boss events, Master Builder is fairly useful for Least Tiers events. Although moderately expensive, access to Traps and Overclock boosts to farm production help tremendously, while Sentry Champion is quite useful for early tiers thanks to its high MOAB DPS. Additionally, the Mega Sentry ability allows Master Builder to maintain constant DPS on the boss from nearly anywhere on the map.
• One can sell the Mega Sentries after beating the boss to minimize stealing pops for other types of towers that have Paragons.
• The benefit of Ultraboost in the buildup towards the Master Builder comes from stacking Ultraboost buffs on the best towers; however, this method requires more planning against Lych, which absorbs applied buffs, since Lych can absorb buffs too close to it. If ultraboosting towers, do it far away from Lych.
  • This can still be very useful for the Banana Central, as if it is placed far away, Lych cannot sap buffs from it until Tier 5.
• Try to micromanage the Green Mega Sentry in order to get the most of its laserbeam. However, its targeting can be locked for convenience.
• For Freeplay, it's worth noting that losing the Paragon of Power buff is often worth it in exchange for access to Sentry Champion, which is extremely strong when given multiple buffs. Thanks to Master Builder's self-Overclock effect, its fastest attack speed will be unaffected by the loss of Paragon of Power when given enough turns for Overclock to take effect. This will also have no effect on the Sentry Deploy ability or the damage of the Mega Sentry explosions.
• To get the $1,950,000 on Medium valuation of manual sacrifices for Master Builder, one must spend exactly 120 worth of 2-4-0 Overclocks. Very few maps can support that many Engineers, and even then it requires occupying excessive amounts of the entire available land. For efficient cost sacrifices, place as many as humanly possible and spend the rest on the cash slider.

Version History

Balance Changes

Bug Fixes and General Changes

Bugs

Current

Patched

• [32.0] The Modified Paragon Sentry's main attack can detect but cannot pop any Camo Bloons. (patched in 32.2)

Teasers

The Master Builder, as it is currently named, is the first Paragon whose teaser came after its being officially announced by Ninja Kiwi. It was announced in Ninja Kiwi's official Version 30.0 patch notes. However, according to Ninja Kiwi's Version 31.0 preview notes, Engineer Monkey Paragon is confirmed not to make a debut on Version 31.0, but rather in a later update. Engineer Monkey Paragon is fully confirmed by Ninja Kiwi to arrive in Version 32.0, according to their 13th May 2022 blog. Between then, Ninja Kiwi made minor hints of Engineer Monkey Paragon coming to the game soon, such as on their 22nd April 2022 blog.

Based on a localization file leak (revealed on this Reddit post by u/1610403csl), Master Builder can create Mega Sentries that build their own sentries. The description reads "Monkey engineering developed to perfection. Creates three Mega Sentries that can build their own sentries." The internal name for the Paragon reportedly is the Master Builder, which has yet to confirmed as of the time of this leak.

On the June 3rd 2022 blog, Ninja Kiwi confirmed once again that the Engineer Monkey Paragon will be arriving soon, and also confirmed two future Paragons, Monkey Ace Paragon and Wizard Monkey Paragon.

Ninja Kiwi once again confirmed Engineer Monkey Paragon for Version 32.0, this time additionally confirming the date at which Version 32.0 will come. On their official Contested Territory sneak peak, Version 32.0 was confirmed to arrive in July 2022. However, the update has been delayed slightly, instead released on August 3rd 2022.

Ninja Kiwi would later post a new teaser on Twitter, posted on June 25th 2022, revealing the Paragon's appearance, idle animation, as well as officially using what was presumably the Paragon's name, Master Builder.

On the Version 32.0 update preview, released on July 21st 2022, the name "Master Builder" was finalized in Ninja Kiwi's Version 32.0 update preview.

The first in-game video of Master Builder was only partially shown an early access video by Tewtiy showcasing Contested Territory. Specifically at 4:07 of the video, the costs and XP requirements of the upgrade, as well as its upgrade description, are revealed.

On August 2nd, 2022, Ninja Kiwi uploaded their Version 32.0 update video on their YouTube account, showcasing the first official gameplay of the Master Builder. As shown there, the Master Builder is able to create 3 different Mega Sentries, which, in turn, build their own sentries. It will also automatically overclock itself at the start of every round. The video also displays an ability for the Master Builder, later revealed to deploy and redeploy its Paragon Sentries.

Quotes

Sounds

When deploying a sentry of any type:

• [gadget placement]
• [gadget placement]

When a Mega Sentry or Mini Sentry explodes:

• [exploding electric fuse]

Gallery

Not enough images! There are not enough images on this page to sufficiently complete this page or section. You can help by uploading some images related to the article's subject(s). In particular, this article needs: In-game screenshots of Master Builder, various GIF images (like is done with previous Paragons), and so on. Don't remove template until the following are done: Pinned MOABs (or "stunned"?) Nailgun machine gun attack Deploying a Mega Sentry Deploying a Mini Sentry Displaying main attacks of each Mega Sentry Displaying plasma attack of Mini Sentry Inability for certain sentries to pop Purple (purple "immunity" shown) Paragon transform GIF Selected Master Builder menu (for showing ability icon as well as general stats) GIF image of unlocking Master Builder Various other GIF images demonstrating basic attacks (similar to Navarch page).

Master Builder in the upgrades menu

Degree 100 Master Builder versus two Fortified ZOMGs, stunning them

Various projectiles from Mega Sentries and Mini Sentries

Green Mega Sentry with no specific targeting

Blue Mega Sentry producing multiple explosions and doing lots of MOAB-class damage

Red Mega Sentry shooting quad red plasma

Detailed view of Red Mega Sentry's quad plasma

Chinook Redeploy menu interaction

Door Gunner menu interaction

Self-Ultraboosted Master Builder, added in 32.2

Master Builder's Blue Mega Sentry's missile

Door Gunner Interactions

Door Gunnered Green Mega Sentry

Door Gunnered Red Mega Sentry

Door Gunnered Blue Mega Sentry

Master Builders

Degree 1-19

Degree 20-39

Degree 40-59

Degree 60-79

Degree 80-100

Sentry Artwork

Red Ability Icon

Red Mega Sentry Upgrade Portrait

Green Ability Icon

Green Mega Sentry Upgrade Portrait

Blue Ability Icon

Blue Mega Sentry Upgrade Portrait

Mini Paragon Sentry Portrait

Official Artwork

Upgrade portrait

Upgrade icon

Promotional Artwork

"Coming Soon" banner

Ninja Kiwi Previews

Upgrade Icon, as shown in the official update preview

Master Builder preview on the official Version 32.0 video

Master Builder's "Paragon Mini-Sentry" on the official Version 32.0 video

Videos

Trivia

• Before the 27.0 update (in which Paragons were introduced), the 5-x-x Engineer was known as the Sentry Paragon. It is now named Sentry Champion since Version 28.0.
• The Master Builder is the first Support Monkey paragon to be released.
• The Master Builder is the first Paragon who belongs to a tower that was released via updates.
• Master Builder was at the time of its release, the most expensive single upgrade in game, surpassing Ascended Shadow which previously held that record. That record was since passed onto the next Paragon, Goliath Doomship.
• Master Builder is the first paragon to have an animated teaser instead of the paragon card format.

Ninja Kiwi Blogs

• It can be implied on Ninja Kiwi's 22nd April 2022 blog that Master Builder is under development as of the aforementioned date of the blog. They did long before announce the introduction of Master Builder back in the Version 30.0 patch notes, which dates back to February 8th 2022.
  • Ninja Kiwi also referred to Master Builder using male pronouns.

Cultural References

• The Master Builder's machine, particularly its mechanical limbs, are highly based on P-5000 Powered Work Loader from Aliens movie.
• The Master Builder's machine is also highly based on the Construct-o-Mech, a four-armed bipedal machine with a similar design, which derives from The LEGO Movie.
  • The aforementioned movie also had a class of people known as Master Builders, which match the name of the Paragon itself.
• The Master Builder's Sentry's Exterior resembles the Metal slug series' Rebel Army.
• Master Builder entire exterior look like resembles Ape escape series's Boss fight.
• A possible coincidence is that the Master Builder shares similarities with the Master Builder from Clash of Clans. They both share the same name, build things, and use a mech.