Looking for *extremely* low graphics FPS games.

Postal 2 is great fun. and it shouldn't need that much in way of graphics.

if you're looking more into MP i'd go with the first unreal tournament :D lots of community updates for it.

Duke Nukem 3D
The game is very good, very old school and will run perfectly on any pc.
I'm not joking, it's really good :)

Rainbow Six

Quake 3 Arena

Clive Barker's Undying, Duke Nukem 3D, Shadow Warrior (the MS-DOS one), Blood, Return to Castle Wolfenstein, Quake (all), Doom (all), Medal of Honor Allied Assault, SiN, Unreal 1 and 2

starship troopers :D
or battlefront 1 and 2

4 for the price of 1
Coming from the 90's, all being based on Wolfenstein 3D's engine one way or the other. So by today's standards, they'll be pretty ugly.
Gameplay does hold up reasonably well all these years later though.

And nobody said Killing Floor? Really?

Quake Live

Blood 2. The Chosen.

Counter-Strike and Killing floor

Try Fallout series, Fallout 3 ran on my Pentium 4 and Nvidia 6200 lol so it will run on your system too. And a question, why don't you buy a video card? (well, a decent one) it will make a huge difference in your system and you will run any game you want, without problems. I've got a P4 and 1 GB RAM and ATI HD4650 and i can run any game (even on high settings), a exception is GTA 4 which i'm running on medium settings, and all this because i don't care about resolution heh :D

kingpin, black mesa, operation flashpoint, deus ex, duke nukem 3d, painkiller

Surprisingly Fallout 3 and Fallout New Vegas aren't that hard to run on older machines, even when my Video card died and I needed to use onboard the game ran great.

I mean, there's so many good ones. DOOM, Wolf 3D, and don't forget IlluminASCII.

Oh yeah. Pew pew!

it's not really an FPS, it could be an FPS if you play as an archer though =)
it's a FULL METAL ACTION MOTHER DUCKING GAME, i just love that game, it's called Mount & blade, if you want to see if it works for you before buying the game, they have a demo version on their website, you can download that for free, and try to lower the settings to minimal, i think it should work for ye =)
And it's one hell of a single player game, you can spend so much time on it, and even if you restart it many times, it's never the same story ! it has a multiplayer too btw =), good luck with your quest for ze game ! but if you ask me i'd ceep my little bucks and keep them patiently until they grow to the point where i can get a new PC :p

I checked your profile to see the games you've played.

• Half-Life 2, Episode One, and Episode Two (all of them have an FOV slider)
• Portal 2 (looks like you haven't finished it yet, has an FOV slider)
• Deus Ex (I don't think it has an FOV slider, though)
• System Shock 1/System Shock 2 (Both don't have an FOV slider, but you can change it from a .cfg file for the second one)
• Return to Castle Wolfenstein (no FOV slider)

That's all I can remember right now, and if you like Half-Life 2/EP1/EP2, you might want to try Synergy, a HL2/EP1/EP2/custom co-op mod.

Killing Floor may work.

ArmA: Cold War Assault. It is renamed Operation Flashpoint, now tweaked to run on the newest OS and it contains the Resistance datadisc. Put some cool mod into it (like FFUR) and play the campaign or some user created missions ("When the world ends" for example).

Some cool mods to try:
CSLA 2 - contains Czechoslovak army from the years of the USSR + modern Czech army. It has awesome campaign and lot of single missions to play
Finnish Defense Forces (FDF) - Same as a CSLA 2. Modern Finnish army with custom voiceover, campaign and missions. You can get a WW2 package which is about Finland-Soviet war complete with all historical units, weapons and vehicles.
Invasion 1944 - WW2 mod, the western Europe theatre (US vs Nazis)
Warhammer 40k mod - this is a partial port of the Dawn of War units with original created content. It has pretty decent melee system (in the borders of the OFP engine), various playable races like Space Marines, Imperial Guard, Sisters of Battle, Tau, Eldars, Dark Eldars or Tau

I have a Pentium 4 3Ghz and 1GB RAM, with a Geforce 6200. I belive that if I can run a game, EVERYONE can.. lol

Some single player campaigns I really enjoyed:

• COD4 Modern Warfare 1 and 2 (both are really well programmed, runs smoothly even on medium settings, and I love the over the top action-movie-style story)

• Doom 3 (Nice game, cool graphics even on low)

• Prey (nice story, nice inovative gameplay, same engine as Doom 3)

• Call of Cthullu: Dark Corners of the Earth (great horror story and atmosphere, I ran it on low, great graphics but it's kinda buggy sometimes)

Have you played Half Life? One of the best games ever, in my opinion!

It's also a predecessor to....HALF LIFE 3!!!

• Doom 1, Doom 2
• Heretic, Hexen
• Terminator
• Rise of the Triad
• Betrayal At Krondor
• Delta Force
• Deus Ex
• Aliens Vs Predator 2001
• Mechwarrior 1
• Mechwarrior 2
• Mechwarrior 3
• Rise Of The Triad
• Shadow Warrior
• Duke Nukem 3D
• Betrayel At Krondor
• Terminator (the old 80s one)
• Quarantine
• Quarantine 2
• System Shock 1
• Deus Ex
• Redneck Rampage
• Myst (story/first person but not shooter)
• William Shatner's TekWar
• Wolfenstein 3D
• Police Quest 6 SWAT 3
• Police Quest 7 SWAT 4
• Soldier of Fortune 1
• Soldier of Fortune 2
• Unreal Tournament 2003/2004,
• Delta Force 2
• Delta Force 3
• Operation Flashpoint 1 aka Armed Assault Cold War Crisis
• America's Army 2.x aa25.org
• S.T.A.L.K.E.R.
• Boiling Point
• Hezbollah - Special Force 2
• Under Ash/ Under Seige
• Rainbow Six
• Rainbow Six Urban Ops
• Rainbow Six Rogue Spear
• Rainbow Six Covert Ops
• Shellshock Nam 67
• Vietcong
• Call of Duty 1/2
• Ghost Recon 1
• Aliens - A Comicbook Adventure
• Splinter Cell
• Hidden & Dangerous 1/2
• Sniper Elite 1
• Halo Combat Evolved
• Mechwarrior 4
• Operation Bodycount
• Spear of Destiny
• Terminator 2029
• The Terminator Future Shock
• Terminator Rampage
• Terminator Skynet
• Terminator 2 - The Arcade Game
• X-Wing vs Tie Fighter

if you want good stories play PNC adventures from early 90s

You should try Max Payne 1 and 2.
I know it is not FPS, but its a very good TPS game and it has a great story and gameplay :)

http://marathon.sourceforge.net

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