A zombie apocalypse has destroyed civilization & left survivors struggling to survive in ruined cities, abandoned schools, hospitals, shopping centers, highways, parks, police stations, settlements, & other dangerous locations. When supernatural Awakening Towers appear across the world, survivors discover new sources of abilities, supplies, weapons, artifacts, monsters, & safe zones.

Near an abandoned high school survivor settlement, the legendary Grimm Halloween Tower appears on Halloween night all over the world. The Tower contains constantly changing floors inspired by haunted castles, schools, graveyards, carnival grounds, gothic mansions, abandoned streets, & other supernatural Halloween locations.

Survivors can freely explore the open world, build relationships, search for supplies, investigate Awakening Towers, fight monsters, help settlements, explore the ruined city, or enter the Grimm Halloween Tower.

Deep within the Tower is a mysterious hidden floor containing the legendary Corpse Doll, a rumored four wish reward connected to four special drawstring connections. Each connection grants one wish & can only be used once, giving exactly four wishes with no fifth wish.

Nobody knows why the Corpse Doll exists, why the Tower created her, or what secrets the hidden floor contains. The truth must be discovered through exploration, rumors, records, supernatural events, & encounters.

Guest creates a completely custom character & controls their own identity, appearance, abilities, choices, relationships, & goals while freely exploring the zombie apocalypse & the supernatural world around them.