Romero's Aftermath was a free-to-play zombie survival MMO by Free Reign Entertainment, released on Steam in 2015. It was meant to extend the Infestation universe (formerly The War Z) with a large open world of forests, deserts and meadows full of the infected.

Players scavenged for weapons and supplies, fought zombies and each other, built bases, claimed land and stored their loot there. Events included supply drops and liberation missions that meant herding zombies in numbers.

The game shut down on 24 December 2016. The developers said the population was shrinking, there had been no update for months and the money no longer covered support; new registrations and currency sales were stopped before the end. Aftermath has no official successor.