Infestation: Survivor Stories (formerly known as The War Z) is an open world zombie video game developed by OP Productions.[1][2] Infestation: Survivor Stories features both first person and third person shooting perspectives. The game offers players the option of killing zombies or playing against other users (PvP).[3]

Infestation: Survivor Stories can be purchased and played online without the need for an ongoing monthly subscription with free updates. Players can, however, purchase cosmetic and convenience items such as ammo, and other items that they would otherwise have to find in the game.[4] Infestation: Survivor Stories has dedicated public servers accessible by all players in addition to player-purchased private servers.[5] A "spiritual successor" to the game, Romero's Aftermath is in development.[6]