Snapshot is a set of free wargames rules for playing modern submarine games using 1/700 ships.
rules
WW1 Air Combat Rules
Don offers an updated version of his air combat rules, which he now calls Aerial Craps.
WWI Fantasy Rules
Orks and Dwarves in a WWI setting? Sure. Here’s a set of fantasy WWI Rules.
The Portable Wargame: Modern Rules
The Portable Wargame is a sort of mini-movement in the community: a series of user created rules for games based on checkers boards. They all look interesting and fun. Here are the rules for the modern version.
Cult of Ulric Warhammer Army
Cult of Ulric is a new Warhammer Fantasy fan-made army sourcebook. It’s very professionally done.