Albion Online (AO) is a free medieval fantasy MMORPG developed by Sandbox Interactive, a studio based in Berlin, Germany. Albion online is based on The Arthurian legends. During the beta stages of development, players were able to purchase "Founder's Packs" to gain access to the closed beta play-tests which were run intermittently by Sandbox Interactive, typically after an interval of a few months of development. After the release of the game, these founder's packs were made unavailable for purchase. Albion Online removed its free-to-play model for various reasons on December 30, 2015. (Which was then made free again at a later date)