Warhammer Napoleonics is a set of stat lines and modifications for using the basic Warhammer Rules for the Napoleonic period.
Warhammer 40K variant
Killzone Survival Warhammer 40 Skirmish Rules
Killzone Survival is a set of fan created rules for skirmishes in the Warhammer 40K Universe.
Aquanautica Imperialis Submarine Rules
Aquanautica Imperialis is a set of free wargames rules for naval battles in the Warhammer 40K universe. The underwater rules are found here.
In The Emperor’s Name v. 3.0
In The Emperor’s Name is a set of free wargames rules for skirmish games in the Warhammer 40K Universe. Theyr’e not up to version 3.0.
Aquanautica Imperialis Warhammer 40K Naval Rules
Aquanautica Imperialis is a set of rules for naval games in the world of Warhammer 40K.