In a large-scale biochemical experiment, an accidental leak of poisonous gas occurred and the world was severely contaminated.
Most people were infected and turned into zombies, only a few survived. At present, it is not possible to develop an antidote.
To protect the few survivors, some warriors can only continue to kill zombies. We call these warriors apocalyptic heroes. Help the warriors buy upgraded weapons and sophisticated mounts, and use powerful abilities and accessories to fight the enemy.