Steam continues its “Steam for the Mac” launch this week by rolling out a dozen new Mac games that are now available for purchase through the digital download service. Casual game highlights include Telltale’s Sam & Max: Season 2, Reflexive’s Simplz Zoo, the indie role-playing game Eschalon: Book I.

An additional collection of Mac titles will launch next week via Steam.

For more information and to download the games, visit Steam’s Mac section.