Historicon is a set of free wargames rules for ancients miniatures. Alienstar Games bills it as a return the ancients games of old, featuring lots of figures, buckets of dice and army lists.
Firepower Naval Rules
Firepower is a set of free wargames rules for naval battles. The rules cover the period 1900 – 1945.
World War II Battalion To Corps Level Rules
Alienstar offers a set of World War II rules for battalion to Corps level games.
Roses Of The North Wars of the Roses Skirmish Game
Roses of the North is a set of free wargames rules for Wars of the Roses skirmishes.
Wars of the Roses Skirmish Rules
The CoolGuyOrDweeb site offers a set of free wargames rules for Wars of the Roses skirmishes.
The Wars of the Roses have long been on my “periods to do” list.