In Clouds of Glory is a set of free wargames rules for World War One aerial combat.
Rules: WWII
Final Round WWII Rules
Final Round is a set of free wargames rules for World War II infantry combat games.
Final Round WWII Skirmish Game
Final Round is a set of free wargames rules for WWII skirmishes.
Final Combat Micro Melee
Final Combat Micro Melee is a set of free wargames rules that converts the Final Combat skirmish system for use with Micro Armor.
1943 World War II Rules
From War Times Journal, 1943 is a set of free wargames rules for battalion level combat in World War II.