2000 video game

Deus Ex is a 2000 action role-playing game developed by Ion Storm and published by Eidos Interactive. Originally released for Microsoft Windows, it was released for Mac OS the same year, and for PlayStation 2 in 2002. A remaster for modern platforms was originally scheduled for release in February 2026, but was later delayed to an unspecified date. The gameplay—combining first-person shooter, stealth, and role-playing elements—features exploration and combat in environments connected to multiple city-based levels, with quests that can be completed in a number of ways and character customization based around cybernetic enhancements. Conversations between characters feature a variety of responses, with choices at key story points affecting how some events play out. A post-release patch incorporated deathmatch-style multiplayer.

Deus Ex is set in 2052, in a dystopian cyberpunk future beset by terrorist acts, economic inequality, and a plague dubbed the Gray Death. The player character, the cybernetically enhanced JC Denton, is an anti-terrorism agent who is deployed when a terrorist group interrupts supplies of a rare Gray Death vaccine. Investigating the incident, Denton ends up involved in a struggle between multiple factions for control of the world. The story is inspired by popular conspiracy theory motifs, incorporating groups including the Illuminati and Majestic 12.

The game was created by Warren Spector, who acted as director and producer, and put together a design concept during the early 1990s under the title "Troubleshooter". After being approached by Ion Storm about creating a project with complete creative freedom, Spector began pre-production in 1997. Staff included lead designer Harvey Smith, lead writer Sheldon Pacotti, and lead composer Alexander Brandon. The game was built using the Unreal Engine, which led to issues with coding and non-playable character behavior. Due to technical and time limitations, some planned features and areas had to be downscaled or cut entirely.

Upon release, Deus Ex was a commercial success, selling one million copies worldwide. It saw critical acclaim from game journalists for its design and freedom of player choice. Its graphics saw more mixed reactions, and the voice acting was faulted. The PlayStation 2 port saw mixed reactions, but many praised its adaptation of the game's mechanics to console. It won multiple gaming awards, has been ranked among the best video games of all time, and fostered an active fan community. It has also been cited as a prominent example of the "immersive sim" genre. Deus Ex was expanded into a series of the same name, with a sequel, Deus Ex: Invisible War, releasing in 2003.

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