Dungeon Defenders is a multiplayer video game developed by Trendy Entertainment that combines the genres of tower defense and action RPG. It is based on a showcase of the Unreal Engine named Dungeon Defense.[4] The game takes place in a fantasy setting where players control the young apprentices of wizards and warriors and defend against hordes of monsters.[5] Dungeon Defenders was announced on August 25, 2010, and has been released on Xbox Live Arcade, PlayStation Network and PC.[6] Support for the Move accessory is planned for inclusion in the PlayStation Network version.[7] Epic Games' Mark Rein has stated that there will be cross platform play between the PlayStation 3 and the PlayStation Vita.[8] The game was released on October 19, 2011 through Steam.[9]

Dungeon Defenders sold over 250,000 copies in first two weeks of release[10] and over 600,000 copies by the end of 2011.[11] By February 2012, the game's publisher reported over one million sales across Xbox Live, PlayStation Network, and Steam.[12]