Worldwide Dead is a free, massively multiplayer, web-based zombie apocalypse game built by Marcel Swann. Inspired by Urban Dead, it is an independent project and is not affiliated with that game. Set in a city sealed off for years, the game brings players into a ruined urban world where survivors struggle to build a fragile society, soldiers remain on cleanup duty, and scientific teams continue experiments behind locked doors. Meanwhile, zombies roam the streets and attack makeshift barricades.

Players can explore the evolving game through maps, including the Ashport map, which entered beta testing in September 2026. Worldwide Dead is actively maintained, with regular release notes and updates covering new features and changes. The site also offers a wiki, plugins, frequently asked questions, and support resources to help players engage with the game. Discord provides secure authentication, with tools for managing alternate accounts. Players who want to support development can donate through Stripe or PayPal.