Dream Theater have just released their game app built around their mega rock opera from last year The Astonishing. You can download the game at these links.
The Astonishing Game contains competitions where players can win Dream Theater exclusive prizes like concert tickets, aftershow passes and signed records. You register inside the game, and complete described challenges on each of the game levels. Achieved challenges are marked by Dream Theater logos that are lit once completed. If a challenge is completed before the dead line, you are eligible to participate in the draw for the outlined prizes. The details of the competitions are also found here: http://www.turbotapegames.com/astonishing-game-prizes/
The band are currently on tour supporting the 25th anniversary of their landmark album Images & Words, which you can find out about here.