Unreal

Unreal is a 1998 first-person shooter game developed by Epic MegaGames and Digital Extremes and published by GT Interactive for Microsoft Windows. Set in a science-fiction universe, the player controls a prisoner whose prison spacecraft crash-lands on a mysterious planet, where they must find a way to escape while combatting the occupying alien empire. It is the first entry in the Unreal game series and was powered by the titular Unreal Engine. The game reached sales of 1.5 million units by 2002.