Great games that don't need great hardware to run

Actually PlanetSide and Amnesia: The Dark Descent have some pretty big requirements for your system, amnesia runs pretty smooth on most computers but I would not recommend a laptop to run it, most of them unless its designed for gaming, it gets choppy and lags about every 10 minutes for a while. Also I would NOT run PlanetSide on any computer that isn't pretty nice/designed for gaming because games like PlanetSide and planetside2 take up lots of ram and can slow down your computer quite a lot, but if you do play it I recommend you use Low graphics quality for it. Another game that doesn't require a good System would be League of Legends. But make sure you get an FPS of around 20-60 because otherwise you will lag and probably die. Hope this helped

Actually Amnesia: The Dark Descent doesn't have big requirements as I mistakenly posted in my last comment, but I would recommend a good computer for maximum game play quality.

A game that I think is supposed to be able to play on old computers is Ace of Spades. I found this game a long while ago when I was looking for a free alternative for Minecraft. While I was doing this search, I also was trying to find a game that would run on my old computer that has a SiS graphics card. Thanks to this article, I found AoS, and ever since, I've spent a lot of time playing this game.

P.S.
"Ace of Spades is a completely free game that is best described as a mixture of Minecraft, Team Fortress 2 and Call of Duty." - Squidoo

How about Strike Commander, Privateer, and Privateer II

I game on my old Precision workstation 670 all the time, though its not really to much of a slouch, I find that all of Valves games work very well on the system, it can even manage BC2, and I decided to try BF3 on it later this week. It amazes me what this computer almost straight out of 2005 can still do, only upgrade I have done is add a 1tb HDD in it and upgraded the graphics back in 2009 to a 9800gt.

The Precision series are Dell's premier high-end workstation series, after all.

It's a shame how many great games there are here - try playing any of these on a computer WITH great hardware and they just stop.

yeah but we are talking 8 years old now, it was able to keep up in the benchmarks till like 2008-2009, but once the core I series got into mianstream no way. Still amazed at what it can do, maybe I am more amazed at how little PC gaming has changed in the last couple years, I basically owe thanks to the consoles for making it so I don't have to buy a new computer till at least the end of this year.

Have anyone ever played WWF - Wrestlemania with 8 Characters ?

I still play it sometimes. Super fun for all time !