Final Combat Micro Melee is a set of free wargames rules that converts the Final Combat skirmish system for use with Micro Armor.
World War Two
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.
Last Hussar’s World War II Rules
The Last Hussar blog has a set of free wargames rules for World War II. They’re a work in progress, so you’ll want to stop back by on a regular basis.
Japanese Invasion of Malaya Postcard Game
Geoff Bohrer offers a postcard game — an entire Avalon Hill style game on a postcard — of the Japanese invasion of Malaya:
The Japanese invasion of Malaya was one of the most perfectly executed military plans in history. Can you, as the British commander, slow the Japanese advance sufficiently to disrupt the timetable for the capture of the East Indies? Or will the Japanese succeed in capturing Singapore in time to establish the Greater East Asian Co-Prosperity Sphere?
This 5×8 inch postcard game includes 18 counters, complete rules which include the asymmetrical abilities of the Japanese and UK forces,and a 5×5 1/2 inch board.
Panzer III
Dave Ferris offers Panzer III, a set of free wargames rules for WIII tank battles.