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.

Ninth Age Alternate Warhammer Fantasy Rules

Given the general fan anger over the direction Games Workshop has taken its Warhammer Fantasy property, it is no surprise that fan written alternatives have cropped up. One is The Ninth Age, a a set of free wargames rules for playing mass fantasy battles. It looks very well done, and has a large number of army books.