Not all titles are currently part of SteamPlay, but more will be added each Wednesday as Valve ramps up Steam for Mac. Steam is a game download service which offers easy access to many popular games and now with a Mac version users can purchase a game once and play it on both platforms as part of SteamPlay. Flo On The Go and Hometown Hero have Flos Closet, wherein the player gets to change Flos look in many more ways with separate clothes and accessories that. Great news for gamers with Mac’s Valve has finally released Steam for Mac - and as an added bonus they are including a free download of the hit game Portal through May 24th.