Good news for Mac and PC gamers, Steam is making Portal free! Admittedly it’s for a limited time, but it’ll give you the chance to try one of the most popular titles that Valve has ever come out with. And this deal is not a lie.

How do you get it, you ask? Sure you did, I heard you. Just go here and push on the giant red button. It’s as easy as that. Then it won’t matter if you are a PC user or a Mac user, you’ll get to discover the joy that is GlaDOS.