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.
Rules: General
Bricks Only Wargame
Bricks Only Wargame is a set of free wargames rules for wargames using Lego bricks.
Tac Ant Combat Simulation
Tac-Ant is a set of free wargames rules for battles between hills of ants.
Seriously.
Can My Soldier Shoot Yours Daddy?
Can My Soldier Shoot Yours Daddy? is a set of free wargames rules for wargaming parents to play with their toddlers.