The Haunted Dimensions site has paper models of three small crypts. The only downside of these is that the back of the crypts are defaced with site advertising. Still, there’s also a brick wall there that you can paste the crypts up against.
The Miniature Wargaming Editor
Minimal Space Combat
Minimal Space Combat is a set of free wargames rules designed to give players an introduction to wargaming and space games.
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.
Charge Yr Pikes! English Civil War Rules
Charge Yr Pikes is a set of free English Civil War miniatures rules. They use a card driven turn mechanism.
New Vegas Fallout Skirmish Game
New Vegas is a set of free wargames rules designed with playing a Fallout style post apocalypse game in mind.