Unreal, including: Unrealscript, Unreal Engine, Expanded Multiplayer, Unreal Tournament, Unreal Tournament 2003, Unreal Tournament 2004, Unreal Ii: ... Unreal Tournament 3, Unreal Engine 3

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More info: Unreal is a first-person shooter video game developed by Epic Games and Digital Extremes and published by GT Interactive (now owned by Atari) in May 1998. It was powered by an original gameplay and computer engine that now bears the game's name, one that had been in development for over three years in founder Tim Sweeney's garage before the game was released.