Team Fortress 2 is the sequel to the game that put class-based, multiplayer team warfare on the map. It delivers new gametypes, a signature art style powered by Valve's next generation animation technology, persistent player statistics, and more.
Reviewing this game a year ago and it'd have a 10, no doubt.
The game today is a mess, the game is horribly unbalanced and looks like arse.
Valve need to spend more time optimising instead of wasting precious polygons on stupid gimmicks.
Despite it running like crap on a core i7 PC it is still fairly hard to put down.
If they stop patching this game, I doubt I'd ever play it again.