Since the game dropped in 2009 if you have a modern PC you can run it with everything turned up with a pretty high frame rate. Watching buildings topple at a buttery smooth FPS is a sight to behold. Since Red Faction is new on Steam is has a ridiculously low $2.99 price tag for the next 38 hours.
http://store.steampowered.com/app/20500/

The thing is, they never did. I just signed into GFWL the other day in Fallout 3. Apparently multiplayer still works. Microsoft has said they plan to continue to support it for "years to come," they just aren't releasing new titles with it. I'm glad to see the move away from it though, since it always seemed to cause problems.
Also it isn't new on Steam, the old version got upgraded to the Steam version, but it's been on Steam for a while. The sale price is just a celebration of the update.
Updated post to reflect that, tanks Travis. The only game I've had on GFWL was Age of Empires online and it was shutdown when GFWL was discontinued. Since a bunch of other games lost multiplayer that used the service I figured it shutdown most games but apparently not.
Yeah I have no idea what *actually* shut down. And Microsoft never made an official announcement. It's confusing.
Again, more reason for people to jump ship to other, better, platforms for authentication and multiplayer.