Caliber .50 is a military-themed shooter game developed and published by SETA Corporation. It was released in 1991 for the Sega Genesis/Mega Drive. Players take on the role of an American soldier named Captain Addis who must escape from a POW camp and defeat enemy forces. The game's action is presented from a top-down perspective, allowing players to navigate through various combat scenarios, using a variety of weapons and defeating a multitude of enemies. The gameplay emphasizes reflex-based shooting and dodging, and it includes several levels with different terrains and challenges, representative of the shoot 'em up genre.