MechWarrior 4 soon

Marathon Series
Great thread. Here's my small contribution. If you are looking for a 90's first person shooter with a great sci-fi story, look no further.

great post. thx.
second scenario (durandal) is for 800 or 400 MSPoints on xbox live

Marathon, GREAT underrated game.

Very true, but why pay for it when you can get it for free? No one plays it on Live anyway. Also, the story is pretty involved, so I'd highly recommend playing all 3 rather than just Durandal.

dotEmu's three free games: Beneath a Steel Sky, , [url=http://www.dotemu.com/download-game/108/ishar-1]Ishar 1

<span class="bold">C-Evo</span>
Another excellent Civilization clone.

Nicky Boom

Movie Battles II Version 0
news here: http://www.moddb.com/mods/movie-battles-ii/news/movie-battles-ii-version-0-released
trailer here: http://www.youtube.com/watch?v=xpoEWv9xQ3Q

Castle of the Winds, full version, free. Roguelike Windows RPG released for Windows 3.1 waaaay back when, considered a classic.
[url=http://www.exmsft.com/~ricks/castl11a.zip]http://www.exmsft.com/~ricks/castl11a.zip[/url]

One Must Fall: 2097 was released for free, too.

waiting is over - MECHWARRIOR 4 :)

Flesh, an horror mod for Half-Life 2.
http://www.moddb.com/mods/flesh
http://www.fleshmod.com/

Virtual U, by the creators of the Capitalism series - you're in charge of a university. Intended to be a training tool that is also a game, so very realistically modeled/simulated. A must-have for fans of Enlight's other business simulations:
http://www.virtual-u.org/product/

http://extcamp.doublefusion.com/US_Air_Force/Game_Download_Sponsored_by_Air_Force.htm
[/url]
get the suffering, area 51 and rise and fall for free sponsored by US air force