Deus Ex: Human Revolution is an action role-playing game developed by Eidos-Montréal and published by Square Enix's European branch for PlayStation 3, Windows, and Xbox 360 in August 2011. A version for OS X was released in April 2012. The game is a prequel to the original Deus Ex (2000) and the third installment in the Deus Ex series. The gameplay combines first-person shooter, stealth, and role-playing elements. It features exploration and combat in environments connected to multiple city-based hubs, in addition to quests that grant experience and allow customization of the main character's abilities with items called Praxis Kits. Conversations between characters feature a variety of responses, with options in conversations and at crucial story points affecting how some events play out.

Deus Ex is a 2000 action role-playing game developed by Ion Storm and published by Eidos Interactive. Set in a cyberpunk-themed dystopian world in the year 2052, the game follows JC Denton, an agent of the fictional agency United Nations Anti-Terrorist Coalition (UNATCO), who is given superhuman abilities by nanotechnology, as he sets out to combat hostile forces in a world ravaged by inequality and a deadly plague. His missions entangle him in a conspiracy that brings him into conflict with the Triads, Majestic 12, and the Illuminati.