Three Plains is a free fantasy wargaming system. It also comes with free print-and-play figures.
15mm
Tudor House Paper Model
This full color model of a Tudor style house probably is best for 10mm or 15mm figures, but since it’s in a jpg format, it would be simple to resize it.
Stormed At With Shot and Shell Crimean War Miniatures Rules
Stormed At With Shot and Shell is a set of free miniatures rules for playing games set in the Crimean War. They’re designed for 15mm figures.
Post and Rail Fence Paper Model
A Miniature Wargaming Exclusive!
I designed these post and rail fences (split rail fences) for use with my 15mm American Revolution and American Civil War games, and now I’m making them available to you. The split rail fence are available here as a free download:
Blades of Bronze Ancient Skirmish Rules
Blades of Bronze is a set of free wargames rules designed for short skirmish 15mm ancient wargames. The rules revolve around the ability of the leaders to give orders to the troops.