Steam for Mac is finally being released today, and “the first collection of Mac titles will demonstrate ‘Steam Play,’ which allows customers to purchase a game once and play it on all Steam supported platforms.” Video after the break.

Among the initial titles available on Wednesday will be Runic Games’ critically acclaimed Torchlight. “We’re very excited to be bringing Torchlight to the Mac,” said Max Schaefer, co-founder of Runic Games.

[via Steam]