Under Siege is a PlayStation Network exclusive real-time tactics video game released June 2, 2011. By Seed Studios, it features a single player campaign, and multiplayer via online and co-op. It contains a level editor which allows users to make and share maps. The game is set in a medieval fantasy world and follows the story of Eirik, Kari and Asgeir. It was designed to be played with the DualShock 3 controller or the PlayStation Move controller. The game was created and developed in Portugal.