expansion; its database was updatable over the Internet, and continued to be updated by Wizards until the release of Judgment and Magic Online, which Wizards considered as superseding the Interactive Encyclopedia. The Encyclopedia included a strategy information section and deck builder with pricing. It also included a free online play mode, albeit one lacking rules enforcement. Magic: The Gathering Online Magic: The Gathering Online is a 2002 game developed by Leaping Lizard Software and maintained by Wizards of the Coast itself since version 2.0 in 2004. It focuses purely on gameplay, and includes no additional storyline. Included are cards from all expansions starting with Mirage with the exception of the sets Unhinged, Unglued, and Magic: The Gathering Conspiracy which would not easily translate to computer play. Updates become available as new sets are printed. Games are held in chatroom-style sessions, and virtual cards can be won or purchased with real money. Magic Online offers a variety of both casual games in which players can use cards they own for fun, and competitive online tournaments in which players use purchased/traded tickets and booster packs to enter into events, both Limited (decks built with cards opened from boosters) and Constructed (decks built from a player's collection). Magic: The Gathering – Battlegrounds Magic: The Gathering – Battlegrounds is a game released in 2003 for both the PC and Xbox platforms, published by Atari. It was another attempt to do a real-time battling game, with wizards frantically running around casting spells. The Xbox version of the game offered downloadable creatures, arenas, and enchantments, though the PC version did not. Magic: The Gathering: Duels of the Planeswalkers Magic: The Gathering: Duels of the Planeswalkers is a 2009 game for Xbox Live Arcade, Microsoft Windows, and PS3 developed by Stainless Games Ltd and published by Wizards of the Coast. It was released first on XBLA June 17, 2009, with a PC version released shortly after. It was announced on February 18, 2008, by way of a press release. Three expansion packs have been released on XBLA. A PS3 version was made available on the PlayStation Network in November 2010. Players are given pre-made decks they can play against an AI or against other humans online; new cards for these decks can be unlocked through play. Magic: The Gathering - Tactics Magic: The Gathering - Tactics was an online turn-based strategy video game for the PC based