Turbo Sub is an arcade-style action game released for the Atari Lynx handheld gaming console in 1991. Developed by NuFX and published by Atari Corporation, the game features first-person shooter gameplay with a futuristic submarine theme. Players pilot a submersible craft through various underwater levels, combating enemy forces and navigating treacherous environments. The game showcases the Lynx's graphical capabilities by offering a 3D perspective and fast-paced action, aiming to provide a challenging and immersive experience for players fond of the action and shooter genres.