Gameforge is a video game publisher and video game developer. It represents a group of companies that operates internationally and has its headquarters in Karlsruhe, Germany. It distributes roughly 20 games, translated into over 50 languages with about 400 million registered users. Their portfolio contains client-based massively multiplayer online games (MMOGs) such as TERA, Metin2, Runes of Magic, Wizard101 as well as browser-based online games such as OGame, Gladiatus, BiteFight or Ikariam. They also operate mobile games. Gameforge employs a staff of over 300 and was founded by its Chief Executive Officer Alexander Rösner and former CEO Klaas Kersting in 2003.