The Deathwatch Station Roleplay System based on the Warhammer 40,000 Lore from Games Workshop. It is a Pen & Paper (PnP) Lite so to speak with the purpose to allow depth for post-by-post roleplays via Forums.
I currently do run the system also as Game/Dungeon Master (GM/DM) on the forum for the upcoming game ‘Eternal Crusade’, where I successfully helped establishing the Roleplay Community:
See the full Rulebook here.
See the Character Creator here, entirely coded and written by myself.