Turbo Overkill is a first-person shooter developed by Trigger Happy Interactive and published by Apogee Entertainment. Drawing heavy inspiration from classic titles like Doom, Quake, and Duke Nukem 3D, the game places players in the role of Johnny Turbo, a cybernetically enhanced protagonist battling a rogue AI and its possessed minions in the cyberpunk city of Paradise. Players utilize a diverse arsenal, including weapons like the Twin Magnums and Telefragger sniper rifle, alongside unique abilities such as a grappling hook, wall-running, and a signature chainsaw leg for sliding and dismembering enemies.

Progression in Turbo Overkill involves earning cash through combat to upgrade weapons and unlock new abilities via a talent tree. Defeated bosses yield powerful augments, granting players new special powers. The game features two dozen stages filled with secrets and combat puzzles, alongside bonus arena challenges. Collectible items can unlock modifiers that further increase the game's intensity.