Army Men Combat is a set of one page miniature wargames rules. It’s designed for those ubiquitious plastic army men, but in truth could be used for anything.
A Tale of Two Cities is a card driven wargame played on a chess board. The units involved are light infantry, heavy infantry, bow infantry and light cavalry.
Bricks Only Wargame is a set of free wargames rules for wargames using Lego bricks.
Tac-Ant is a set of free wargames rules for battles between hills of ants.