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.
Under The Shade Of The Trees ACW Rules
Under The Shade Of The Trees is a set of free wargames rules for the American Civil War. They’re designed as “fast play” and suggest using standard Johnny Reb or Fire and Fury basing.
The Revised Brom ACW Rules
The Revised Brom is a set of free wargames rules by Jay Ainsworth for wargames set in the American Civil War. They’re based on an original set of Larry Brom rule (duh). It uses a typical Brom card activation system, a random movement distance mechanism, and simultaneous fire.