In a surprise announcement, Skullgirls is now available on both Mac & Linux! It's included in the latest Humble Bundle, on sale w/all DLC included for just $6! Furthermore, everyone who already owns the game on Steam will be able to access the Mac and Linux versions at no additional cost. The port itself was actually developed by Humble Bundle, with an internal team of programmers picking up where hardworking volunteers like @cybik had left off. Finally, everyone can enjoy Skullgirls!