Games that Make You Rage Quit

[Kurokami]

league of legends you will never rage quit a game more then that but it is still so amazing

Dota players are enough to make me quit any game, generally.

 

[Super Toast]

Mount & Blade. Seriously, it's 30% skill and 70% luck.

 

[AnAngryMoose]

The Spring Offensive in Toy Soldiers is rage-inducing. After an arduous fight and counter-offensive to defend your toy box you get a motherfucking boss dropped on you at the end of the level!

 

[tharglet]

Prototype - some parts of the main mission are just annoying. When I enhanced the whipfist ability and had the attack on "e" that drove me nuts, as it made picking stuff up really, really annoying.
Dragon Age - I'm playing as a warrior, and my party is having warriors chucked at it. When I had 2 mages, things went a lot smoother. Heck, speccing the "dark" mage into healing has upped my survivability somewhat, but there's still annoying fights.
One of the tomb raiders - can't remember which one, but I haven't completed it thanks to a very difficult and annoying timed puzzle.

 

[Ambient]

L.A Noire is the only game that has made me rage quite so far.

 

[Dream_Sequencer]

Demons Souls.

As simple as that.