Quarantine City is an engaging 2D bullet-hell action game designed for Windows, where players face off against an unending wave of zombies. Set in a city ravaged by a recent outbreak, players must navigate through the environment, gathering weapons and resources to fend off the relentless undead. The gameplay emphasizes survival, encouraging players to explore and utilize various guns while managing their ammo and infection levels. Controls are intuitive, allowing movement with the WSAD keys and aiming with the mouse, making it accessible for players of all skill levels.

The game features a distinctive pixel art style, a result of years of hand-drawn work, enhanced by contributions from OpenGameArt. Players can interact with the game world by opening doors and crates, and they can pause the action at any time. Quarantine City also includes audio settings for a customizable experience. Overall, it provides a straightforward yet thrilling challenge for those who enjoy action-packed survival games.