Zen Studios, the developer behind upcoming physics-based war game CastleStorm, offering users the chance to win a free copy of the 2D title with the announcement of a karaoke contest.
Alternative prizes include Zen Studios slippers and redeemable codes for the net Pinball FX2. In order to enter, interested users must submit a link of their CastleStorm music video based on the trailer seen below, then send it directly to Zen Studios at CastleStorm@zenstudios.com or to the developer's Twitter account @zen_studios.
The contest will run until November 16 at 11:59 p.m. PST.
CastleStorm is scheduled to launch on Xbox Live Arcade next year.