Vanguard: Saga of Heroes is a fantasy massively multiplayer online role-playing game (MMORPG) created by Sigil Games Online, and now developed and run by Sony Online Entertainment. Originally, the game was co-published by Sony Online Entertainment (SOE), and the company producing it, Sigil Games Online. The game was released on January 30, 2007, with an early access date of January 26, 2007 for pre-order customers. On May 15, 2007, it was announced in a press release that Sony Online Entertainment had completed a transaction to purchase key assets of Sigil Games Online, including all rights to Vanguard.