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About
Chapter Master is an unofficial fan project where the player commands a Chapter, an autonomous, largely self-sufficient unit, of Space Marines to defend the Imperium of Mankind from various alien and human threats. The player must contend with enemy forces, the dangers of space travel, and the internal politics of the empire to keep their chapter alive and win glory to their name. The game is heavily inspired by Master of Orion 2, drawn from a 2011 thread of speculation on 4chan. The most current version of the game can be downloaded from the thread on Bay12 forums.
News
Marneus Augustus Calgar, Chapter Master of the Ultramarines - Warhammer Community
Warhammer Community · 10/20/2025
Raven Guard showcase – Aethon Shaan steps up to lead his Chapter - Warhammer Community
Warhammer Community · 9/5/2025
Aethon Shaan: Master of Shadows - Warhammer Community
Warhammer Community · 9/2/2025
The Blood Ravens' Chapter Master Gabriel Angelos won't be in Dawn of War 4 so it can focus on relatively 'normal' heroes instead - PC Gamer
PC Gamer · 8/31/2025
Warhammer 40,000: Space Marine 3 Is Officially in the Works — So Which Chapters Could It Feature, and Which Enemy Factions Could You Fight Against? - IGN
IGN · 3/14/2025
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