Looking for *extremely* low graphics FPS games.

http://marathon.sourceforge.net

Marathon. It's really good. From the creators of Halo.

I loved Soldiers of Fortune

what about a low priced video card ?
like this one
http://www.amazon.com/Gigabyte-Express-Crossfire-Graphics-GV-R667D3-2GI/dp/B0086A7AB8/ref=sr_1_3?ie=UTF8&qid=1392038775&sr=8-3&keywords=amd+radeon+hd+6670

Chrome, Chaser, Unreal 2. Great games and they definitely work for you.

You can smooth play tf2 ;) And when you make your graphics script you can make aboud 10-20 fps +

I thonk that you can also play cod:uo of course, and also you can play cod4 :) I played it on intel x3100 soo... :D

If you like racing games, whats about great GRID? I play it in 640x480 with low on, but its very playble. Also all nfs from hp2 to pro street you can play as well.
Different racing game - FlatOut 1 & 2. It great game! especially mini games like ski jumping or derby :D Maybe cmr 2.0, cmr 2005?
If you like, gta 3, vc, san andreas, all you can run and with som modifications of comand line you can play gta4 without mods.

Prince of persia forgotten sands, sands of time. First hitman.. List of the game is long, and you need to choose what yo want to play :) Its old games, but still very good :D

Wolfenstein 3D ftw

Wolfenstein 3D
Duke Nukem 3D
Quake
Team Fortress
Shadow Warrior
Star Wars Jedi Knight: Dark Forces I+II
Thief: The Dark Project
Unreal
Tom Clancy's Rainbow Six

Command & Conquer: Renegade isn't the greatest singleplayer FPS, but the multiplayer is really fun. Plus the community has taken over improving it since EA basically abandoned the game (except to release it as part of new C&C collections every so often).

Freedom Fighters, it's more 3rd person shooter

Oh the worst optimised and worst FPS of all time I remember playing was 'NWO' aka New World Order. Hillarious.

Also a DECENT game was 'Global Ops' lots of customisable weapons, but no one probably plays it anymore.
http://en.wikipedia.org/wiki/Global_Operations
http://www.youtube.com/watch?v=S-nAuf4lfnw
One of the first modern shooters with three sides multiplayer

Beware the 'new' Global Ops.

Have Fun

The S.T.A.L.K.E.R. games can run on potatoes since you can play them in DX8. They have no FOV slider though, you'll have to opt for one of the mods that adjust FOV.

You can smooth play tf2 ;) And when you make your graphics script you can make aboud 10-20 fps +

I thonk that you can also play cod:uo of course, and also you can play cod4 :) I played it on intel x3100 soo... :D

If you like racing games, whats about great GRID? I play it in 640x480 with low on, but its very playble. Also all nfs from hp2 to pro street you can play as well.
Different racing game - FlatOut 1 & 2. It great game! especially mini games like ski jumping or derby :D Maybe cmr 2.0, cmr 2005?
If you like, gta 3, vc, san andreas, all you can run and with som modifications of comand line you can play gta4 without mods.

Prince of persia forgotten sands, sands of time. First hitman..

Also max payne 1 & 2 is for you. Mafia 1, postal 1, 2, Tom Clancy's Splinter Cell Chaos Theory, and all of the sims (also with sims 3 ;)

List of the game is long, and you need to choose what yo want to play :) Its old games, but still very good:D

Duke nukem 3d

Doom 3 and Prey should run just fine for you I think, they're both really fun. I don't mean the BFG Edition, but the original; I think that's available on Steam too?

Does Riddick's Dark Athena not run for you? Then get Escape From Butcher Bay, it's fun. If it does though, stick with that because it has Butcher Bay in it too.

Timeshift is fun, but I'd advise against buying it as I think it's overpriced, and I've never seen it on sale below a 25% discount.

Halo goes without saying, Halo 2 might not run for you though. Believe me, you're not missing out on too much with it, but defo play the first game.

Postal 2 is kinda addictive, but if it's really not up your alley then you probably shouldn't bother. Basically, it's a joke game, you can choose to appreciate it or not. The gameplay is absolutely addictive though.

Hmm, let's see. Some other oddities like Condemned: Criminal Origins, Vampire: The Masquerade: Bloodlines and Dark Messiah of Might and Magic might also be of interest. None of those are first person shooters per se, but they are first person perspective, they all have kinda-sorta shooting elements to them (even if it's with arrows), and all 3 of them are pretty fantastic in my opinion. Something to consider.

Ah right, Call of Juarez. It's a bitch, really. Pissed me off so damn hard on my first playthrough, but maybe it did because it was on a really old PC with some huge lag that followed. The xbox version seemed more alright, but overall the game was really fun. Definitely stick with it to the ending.

Bioshock also comes to my mind, but I'm pretty sure someone recommended it. Even Infinite doesn't seem to have an earth-shattering minimum requirement; it's the Unreal 3 engine afterall.

Otherwise, I have hoards of recommendations for you if you're into oooooooooold FPS games, in which case you should probably play the whole Thief series, System Shock 2, some Thief games, Red Faction, Thief, Chaser, Thief, the Deus Ex series, the Thief series, SHOGO: Mobile Armor Division, Thief, Max Payne (and MP2), Thief, the Serious Sam games, Thief, and for some good measure, the Thief series. Ah, almost forgot to mention the Thief games, stupid me.

No one lives forever for sure!

Doom 1

You have to play CS 1.6. Still has a large player base and it's on the original Source engine so it'll run on anything. Also try Unreal tournament 2004 but I think that it's dead so you'll have to get some friends together unless you enjoy playing against bots. Problem is that you want an FPS that's low spec AND has a story. The only low spec FPS games are the older FPS games and those are just straight up multiplayer shooters.

Blood

Star Wars Jedi Knight 1, and you could try the other ones, i used to run them fine on Pentium 3 and 256 mb of ram, they are awesome games.

Best RPG ever Deus Ex, you are welcome :)

Quake 4 has great graphics, but you don't need a gaming rig to play it. I have a computer with a Pentium 2.66ghz processor, 1gb RAM and 128mb Nvidia(dont know which one) graphics card and it runned really really good on low.

why didn't you play half life 2 yet? didn't like the first one? i finished the first one a couple weeks ago and started the second today.. the second looks alot better and works with my 360 pad!

Return to Castle Wolfensteain had a great single-player campaign

Thanks for all the suggestions :D
I didn't expect so many!

Since it'll take me too long to try them all and pick out a favorite, I'll just post the private giveaway links for the NEXT weekly Humble Bundle here so that everyone who visits this thread can enter it ^.^