Age of Empires
Age of Empires is a series of historical real-time strategy video games, originally developed by Ensemble Studios and published by Microsoft Studios. The first title of the series was "Age of Empires", released in 1997. Seven titles and three spin-offs have been released.
Age of Empires Online
On February 24, 2011, it was announced - first via Chris Taylor's Facebook page - that Gas Powered Games had taken over development from Robot Entertainment. According to a blog post, Gas Powered Games was already working on the game behind the scenes, creating content packs and moving to take over as lead developers, which was planned for some time. The game was released on August 16, 2011 with the Greek and Egyptian civilizations, followed by the Persians during the holiday. The Celts was postponed to March 2012, and was the first out of the four civilizations solely created from start to finish by Gas Powered Games since taking over development.