Thumper will be publicly playable this Thursday, December 4th at Open Play Day, in COEX (Korea World Trade Center), Seoul. The game will be shown alongside 30 other games currently in development. The event allows developers to play test their work and receive feedback from other developers and the public. It's free, so come and support the Korean indie scene! Here's a trailer for the event, it includes a sneak peak of Thumper gameplay.