Cross-Platform Games Hit Steam’s Mac Store

A selection of new games has appeared in Steam’s Mac store, including, for the first time, a couple of titles with cross-platform multiplayer.

Both Killing Floor and the splendidly named Madballs in Babo: Invasion will allow players on PC and Mac to join together in blowing up zombies or, uh, doing mad things with their balls.

Other titles available on Mac today are Telltale’s second season of Sam & Max adventure episodes and “old school RPG” Eschalon: Book 1.