Today I just played like 3 hours of "The Battlegrounds", it's a half-life mod game made by a third party. It's themed around the American Revolution. Not many people play it, but ever since it came out I've been playing it on and off. Oh, and it's free if you have steam! (which is free too, the valve games on it aren't though)
I fight Muppets with tactility inhibitions on a regular basis.