Taking place 20 years after the events in Deus Ex, Invisible War reveals a futuristic world where basic needs are left unmet. It is a world on the brink of chaos after the dismantling of the mighty biotech corporations, a world where multiple religious and political groups now lust after power. Thus begins the sequel to 2000's critically acclaimed first-person shooter, which finds players investigating the different factions struggling for control to determine which groups are beneficial and which are a threat. Enhancements to the core engine include a retooled physics system, refined AI, added character animation, and more choices on the part of the player.