Debug may refer to:
- Debug Stick, item used to change various block states.
- Debug mode, world type used to test block states.
- Debug screen, screen shown when F3 is pressed.
- Commands/debug, command used to start and stop debug sessions.
- debug.png and debug2.png, debugging assets found in the game's texture files.
- debug_fourj_item, item once used for unknown debugging purposes.
Various game versions created for debugging purposes:
- Alpha v1.2.2a
- Beta 1.3a
- Beta 1.6 Test Build 3
- Numerous snapshots and pre-releases