The third edition of One Page Fantasy Battles has been released. It is intended as a replacement for Warhammer Fantasy Battles.
Rules: Games Workshop
Genestealer Cult and Space Marine Chapters For 1 Page 40K
One Page 40K is a simplified version of the seminal miniatures wargame. The rules now offes data for Space Marine Chapters and Genestealer Cults.
Coreheim: Mordheim Updated Rulebook
Coreheim is an updated rulebook for the venerable Games Workshop Mordheim system. I liked Mordheim (and its predecessor, Necromunda). I should get them out again to play.
One Page Kill Team
One Page Kill Team is a set of free wargames rules for small scale skirmishes in the 40K universe.
40K Unlimited Warhammer 40K Fan Rules
40K Unlimited is a set of fan created alternative rule for Warhammer 40K.