Eve of Extinction is a 3D beat 'em up action title, where you play as Josh Calloway, an employee of Wisdom Incorporated who discovers he has been subjected to tests to develop a powerful weapon called LEGACY. Little does he know that his new abilities are meant for military gain.
Josh's girlfriend and co-worker Eliel Evergrand is captured by the company, and her soul is placed inside the core of a new LEGACY weapon. Josh must escape with Eliel's help to put an end to Wisdom's plans and save her from being trapped forever.
The gameplay involves onscreen command elements during play, which guide you in the right direction and help you avoid danger. You can switch between different weapons during attacks to increase their power, and upgrade them using ley seeds found throughout the game.