Tor’s game Relics pretty much defies categorization. It’s a fantasy world, with a black-powder/steampunk vibe. Some of the factions look like homicidal dolls, while other resemble the faerie of yore. You can take a look at the rules for free at the link.
skirmish
Stargate Solo Rules
I love Stargate and have long wanted to do a game set in its universe. Here are a set of solo rules for Stargate.
Sengoku Jidai Samurai Skirmish Rules
Sengoku Jidai is a set of quick play samurai skirmish rules. There’s also a Korean supplement.
World War II Skirmish Rules
The Tyneside Gamers offer a set of World War II skirmish rules. Lots of other rules sets at the page also.
Arquebusier Renaissance Skirmish Rules
Arquebusier is a set of free wargames rules for skirmish games set in the Renaissance.