ID:120467
 
Currently going through a fifth year since I've done this sort of thing, here's a listing of games that have or will turn 10 this year:

Robot Arena
Black & White
Serious Sam
Super Smash Bros: Melee (Gamecube)
Star Wars: Obi-Wan (Xbox)
Pool of Radiance: Ruins of Myth Drannor (Sequel to Pool of Radiance)
Tropico
Oni
Halo (Xbox Version)
Star Wars: Rogue Squadron II - Rogue Leader (Gamecube)
Microsoft Train Simulator
Emperor Battle for Dune
Motor City Online (Cancelled a year or two after release)
Star Wars: Galactic Battlegrounds

These are just retail games so far. May notice that I now started posting more console games. I haven't listed any PS2 games due to the fact I don't possess a PS2. Feel free to list those as well as any game for any system.

Here's a bonus: I know some BYOND games came out in 2001 (before I even joined) and deserve a mention this year and so forth. For anyone who is from that era or knows of such games, feel free to list those as well. :D
Pool of Radiance: Ruins of Myth Drannor (Sequel to Pool of Radiance)

YESSSSS! I'm not the only one who knows about this fantastic game!
Nice DT. :D
Oh boy, super smash brothers melee.
Another game that turned 10 this year: Tanks Halloween, or perhaps this list.
Didn't mention Portal


Nothing to see here folks.
Super Smash Bros. Melee. (:
My Life as a Spy!
Wow, doesn't even feel like 10 years ago SSBM came out. That game was the shizzlessssssss. The main reason I even bought a Gamecube.
Runescape. I was one of the first players in the spring of 2001. The olden days when there was no wilderness and anyone could pvp anywhere.

Civ 3

All I can think of for the time being...
I remember Runescape. Only played it like once and I believe it was around the same year I first tried it (maybe). Yeah, it was definitely different in those days.

Can't believe I forgot to list Civilization 3.

Here's another addition: Tom Clancy's Ghost Recon (completely forgot about that game)

Also, thanks to those who provided a listing of BYOND games that came from the 2001 era.
There must be some Pokemon games for 2001. Silver and gold or crystal maybe?