Good game for crap PC?

Hey, I want to play a game on my mom's crappy comp. >_< I can't even play GunZ here! The only online game this comp can handle is Urban Terror.
Can someone please tell me what a good online FPS is for a crappy PC?

I play Prototype, Crysis, CS:S and GunZ at my dad.

It's not a FPS, but you can try Lightning Warrior Raidy.

Doesn't take much to run Crossfire.
Or Battlefield Heros.

RainbowSix3 Raven Shield.

You can find tons of downloads on bit torrent.
Can You RUN It?
that will tell you if you can run it

Minesweeper.
Jk, try Soldier Front, that game has crappy graphics and it doesnt take up a lot of disk space.

close enough.

no to far away

Starcraft.
[just fucking bc]

Soldier Front Has really low specs and really low quality and Gameplay. Basically it Sucks

Runescape... it's made with Java, it's designed for bad computers.
But if you can then get MapleStory

Plants vs Zombies

hehheheee

lulz