This game is fantastic if you and yours can fill a ship's crew (4 players if I remember correctly). Repetitive, multiplayer focused, and weak for solo.

Turn based football strategy based on the Warhammer franchise. Adapted from a table top game, check out blitz mode for more real-time mode.

Friend-is-foe platforming semi-puzzler. Ridiculous, bizarre, and lots of fun. You might have to run upstairs and punch your room mate, I know I did.

One of the least forgving games I've ever played. Merciless competition between hardcore players. If 'competitive' is what you want, pick this.

An updated version of the RTS that introdcued me to the genre. Well put together and runs exceedingly well, fans of the original will enjoy this one.

RTS/TBS with solid multiplayer support. A campaign might take too long for most players, but the custom battles make for enjoyable, shorter sessions.

Tactical, turn based, and as 4x as you'd like it to be. Make sure to avoid automating units in larger multiplaer matches as too many will cause lag.