Operational Combat System

The Gamer's / MMPs popular series of wargames simulates 20th century battles at levels ranging from battalions to divisions.

"Operational Combat Series (OCS) games simulate campaign-level combat from 1900 to the mid-1950s. The series goal is to allow a sophisticated study of historical events while maintaining mechanical simplicity. Every facet of modern combat is modeled."
(from MMP webpage)

1. Guderian's Blitzkrieg: The Drive on Moscow (reprinted and revised as Guderian's Blitzkrieg II) - 1992
2. Enemy at the Gates (reprinted and expanded by Case Blue) - 1994
3. Tunisia (reprinted and revised as Tunisia II) - 1995
4. Hube's Pocket (reprinted and expanded as The Third Winter: The Battle for the Ukraine September 1943-April 1944) - 1995
5. DAK: The Campaign in North Africa, 1940-1942 (reprinted and revised as DAK2: The Campaign in North Africa, 1940-1942) - 1997
6. Burma: The Campaign in Northern Burma - 1999/2008
7. Sicily: Triumph and Folly (reprinted and revised as Sicily II) - 2000
8. Guderian's Blitzkrieg II - 2001/2011
9. Korea: The Forgotten War - 2003/2014
10. DAK2: The Campaign in North Africa, 1940-1942 - 2004
11. Case Blue - 2007
12. Baltic Gap: Summer 1944 - 2009
13. The Blitzkrieg Legend: The Battle for France, 1940 - 2012
14. Reluctant Enemies: Operation Exporter - 2014
15. Beyond the Rhine: The Campaign for Northwest Europe - 2015
16. Tunisia II - 2016
17. Sicily II - 2016
18. Smolensk: Barbarossa Derailed - 2018
19. Hungarian Rhapsody: The Eastern Front in Hungary - 2020
20. The Third Winter: The Battle for the Ukraine September 1943-April 1944 - 2021

Future plans (see OCS Update July2019)

• Bagration - Currently in development
• Forgotten Battles - Currently in development
• The Hero City - Currently in development
• Crimea - Not ready for playtest but in development
• Normandy - Very early stage of development
• Italy - Very early stage of development
• Sea Lion - Very early stage of development
• Czechoslovakia 1938 - Not ready for playtest
• Malaya - Not ready for playtest
• Prussia 1945 - Not ready for playtest
• Greece 1940-1941 - Not ready for playtest
• Changsha - Not ready for playtest
• Kursk - Not ready for playtest
• Norway 1940 - Not ready for playtest

The Third Winter, Forgotten Battles, The Hero City and Crimea can be played as one game called Ost Front.

• The OCS Depot - Updated site for current Living Rules, Errata and other content - Up-to-date 2021
• The Gamer's Archive - original site for current Living Rules, Errata and other content
• Available games at MMP
• John Kisner's Blog page
• Consimworld forum folder
• The Gamers page on wikipedia
• Video tutorial

• Operational Combat System

• An Easy Reference for OCS reviews
• Player aids on Modes, Supply, Sequence of play and general advice

• Chris' OCS List
• OCS - the best wargame system?
• Operational Combat Series (OCS)