From now until September 20, the PC and Mac versions of Valveās classic first-person puzzler Portal are free. Free gratis. You wonāt pay a cent for it.
A website has gone live (perhaps a little early) promoting the offer, which directs users to Valveās Steam service, where theyāre directed to download the game free of charge.
Not that this will be terribly useful to that many of you, since by now, four years on, surely everyone has a copy, but just in case you donāt, have at it!
Learn With Portals [Valve]
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