Cross-platform multiplayer titles hit Steam for Mac

A new batch of games has landed on Steam for Mac. While there are several new single-player titles available, it's the new multiplayer titles that are particularly noteworthy. The reason: Multiplayer is compatible across both Mac and PC platforms. Leading the cross-platform charge is cooperative zombie murder sim Killing Floor. Two other cross-platform titles now available include Madballs in Babo: Invasion and Altitude, a 2D aerial dogfighting game.

To mark the occasion all three games are on sale, with Killing Floor priced at $13.99 (33 percent off) and both Altitude and Madballs available for $4.99 each. Plus, Altitude will be free to play this weekend. Incidentally, these sales apply to the PC versions as well.

Find a full list of this week's new Mac games after the break.
New Steam for Mac releases:

• Madballs in Babo: Invasion
• Killing Floor
• Sam & Max - Season Two (also available in individual episodes)
• Simplz Zoo
• Windosill
• Eschalon: Book 1
• Chains
• Caster
• Hearts of Iron 3
• Altitude
• Europa Universalis 3 (complete)