Get Portal for free and Steam officially ported to Linux!
 

http://store.steampowered.com/freeportal/

Go get it now if you don't own it! This isn't a temporary deal. It is a temporary offer, but once you buy it (for free) you own it. Even after the due date (May 24th) is passed. Go and get it now even if you're computer can't play it! Someday maybe you'll get a good enough computer so you can play it and you'll thank your lucky stars that you managed to take advantage of this incredible deal while it was free!

Those of you who don't know what Portal is....you're beyond help.

EDIT: Official Linux port announcement.

I've been wanting to get this game for a while now, so I'm very happy. Of the ten minutes I've had a chance to play so far it seems very good.

Thank you for the heads up! I already own it on Xbox 360, but heck yeah I'll take a free PC version!

A lot of people who've responded on the various forums I've spread this news to have said the exact same sentence lol.

EDIT: More big news! Steam has been ported to Linux! There are already a few already Linux-ported games supported such as Unreal Tournament 2004 and a few id Software titles. The first Valve games to launch on Linux will be HL2, Counter-Strike Source, and Team Fortress 2.

The free Portal offer is officially over. My congratulations to those who took advantage of the deal and my sympathies for those who didn't. Better luck next time.

Downloaded. Installed. Still sitting in my library to be played...just not on the top of my list right now, but I'm sure I'll enjoy it eventually.