Good Games For Old Computers

These games will work on anything. I have a shitty, integrated GeForce 5200 that can run literally nothing past the year 2002, and all these work fine. 
I'll try to update it as I go.  

I don't play on the PC much, so my knowledge is limited. Feel free to suggest more in the comments!

List items

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  1. Deus Ex
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  2. Diablo II
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  3. Counter-Strike: Source
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  4. Half-Life

  This, and all it's expansions.

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  5. Warcraft III: The Frozen Throne
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  6. Cortex Command
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  7. Worms Armageddon
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  8. Blood
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  9. Quake

  Any game from the series bar Quake 4 and Enemy Territories.

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  10. Nexuiz

  An awesome Free2Play homage to Quake.

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  11. Doom II: Hell on Earth
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  12. Survival Crisis Z

  Another awesome Free2Play game.