Look for a new PC gaming experience

Well, I've played quite a few popular games such as Team Fortress 2, Counter Strike, WoW, Age of Empires, Starcraft, and others but I'm looking for something new..

What I mean by this is something that is sort of off the beaten path like a game such as gunbound (not sure if I should play it) or a certain mod like garry's mod..I know that PC gaming has something else out there to explore such as indie games or mods or other free games so hit me up with some suggestions..

thanks!

i second the recommended games...

crayon physics deluxe, braid, world of goo, multiwinia, gravitron 2...

and here are a few excellent free games

gravity bone (fantastic polished stylish first person secret agent adventure...great short experiecne.about 20 min to finish)

http://www.blendogames.com/

phun (sandbox game)

http://www.phunland.com/wiki/Home

bontago (block building physic based startegythathas also a sandbox mode)

http://www.bontago.com/

flywrench (abstract fun! control a flying wrench)

http://www.messhof.com/games/flywrench.php

neverball (monkey ball clone)

http://neverball.org/

typogun (arcade typing game...typing and shooting)

http://pondspark.blogspot.com/2001/01/typogun_9514.html

strange attractors 1 (great one switch game...)

http://www.ominousdev.com/games.php

Battlezone Enhanced

http://www.bze.mod-planet.net/

portal

flight simulator: X

Thanks to all..would love to get some more mod recommendations and any other thoughts!crazymaghie123

Sins of solar empires, World of goo,Americas army 3 ( its free ), Trackmania nations ( also free and one of the best online racing experience with an easy track editor),Defcon, also if you have battlefield 2 you might wanna check battlefield reality mod and last but not least PORTAl and Portal prelude (though the latter becomes extrmrly frustrating)adamosmaki

Total war series

battlefield games

Company of Heroes> than any other rts game