Past Events
1973
- Birth of Donald Morden: The main antagonist of the series, Donald Morden, is born on January 24th, 1973 in New Brunswick, Canada.
1992
- Birth of Ralf Jones: Ralf of the Metal Slug universe is born on August 25th in the USA.
1997
- Birth of Clark Still: Clark of the Metal Slug universe is born on May 7th in the USA.
2002
- Birth of Alisa Stewart: Alisa is born on July 2nd.
2005
- Birth of Marco Rossi: Marco is born on April 13th in Idaho, USA.
- Birth of Tarmicle Roving: Tarma is born on May 1st in Hokkaido, Japan.
2008
- Birth of Fiolina Germi: Fio is born on October 2nd in Genoa, Italy as the only female child of the wealthy Germi family.
2010
- Birth of Eri Kasamoto: Eri is born on June 16th in Hiroshima, Japan. She is left alone in front of a church.
- Birth of Leona Heidern: Leona of the Metal Slug universe is born in January 10th in an unknown location of South America.
- Birth of Trevor Spacey: Trevor is born on June 25th in Korea.
2012
- Birth of Nadia Cassel: Nadia is born on August 6th in France.
2013
- Birth of Walter Ryan: Walter is born in an unknown date in Australia.
2015
- Birth of Tyra Elson: Tyra is born in an unknown date in the USA.
2023
- A bombing on the Central Park by terrorists cause the deaths of many civilians, amongst them Donald Morden's wife and daughter [1].
- Donald Morden defects from the Regular Army and self-promotes to General.
- Morden organizes the many terrorist groups and guerrillas into what became known as the Rebel Army. Several Regular Army soldiers and members defect to Morden's army.
2026
- Start of the Rise of the Rebellion.
Events Depicted in Games

2027
2028
2030
2031
2032
- Metal Slug 3D: Oguma Crisis
20XX
- Metal Slug: 2nd Mission: Second Mission (Between Metal Slug: 1st Mission and Metal Slug 2)
- Metal Slug Advance: P.F. Island Occupation (Post-Metal Slug 5)
- Metal Slug 7: Garbage Island Incident (Post-Metal Slug 3D)
2XXX
- The remaining Rebel Army soldiers create a time warp and send their men, along with their futuristic weapons to the past, in order to help Morden launch a new coup d'état.