Portal Free on Steam on Both PC and Mac Until September 20

Everyone’s favorite game featuring portals that make a “blowmp” sound is free on Steam for the next few days, until September 20. So, if for some reason you haven’t played Portal and the generally super cheap entry fee hasn’t been cheap enough, now you have no excuse.

The minimum system recommendations are pretty low, not even requiring DirectX 9. The Windows version recommends a 1.7 GHz processor and a measly 512MB of RAM, while the Mac version recommends a OSX 10.5.8, 1 GB of RAM, and an NVIDIA GeForce 8 or higher, or an ATI X1600 or higher, or an Intel HD 3000. So, basically, if you have a Windows computer from five years ago, you can play Portal for free, and if you have a MacBook from the Leopard days, you can play Portal for free. What I’m saying here, is if you haven’t yet played Portal, you should go play Portal. It’s free for the next few days. Get it here.

(via Rock, Paper, Shotgun)