Mark of the Ninja is been confirmed for release on Steam, following the game appearing on a Steam content descriptor recently.
Rock, Paper, Shotgun reports that Mark of the Ninja will hit Steam Stateside on October 16th at $14.99. No European date has been given as yet.
Developed by Shank studio Klei Entertainment, Mark of the Ninja is a hard-hitting beat em up with rather lovely animation. Fans of Shinobi and Contra will get a kick out of its side-scrolling format.
Let us know if you pick it up.