Warner Bros. are releasing a demo version of the upcoming DC Comics brawler Injustice: Gods Among Us on PSN and Xbox Live today. The demo lets players sample Batman, Wonder Woman, and Lex Luthor on the Gotham City level. The full game is set for release on April 19 and will feature the kind of robust game modes we've come to expect from Mortal Kombat creators Netherrealm Studios.