Undead World: Hero Survival is a new survival RPG game available for iPhone users. The game, developed by Double Down Interactive LLC, takes you on an adventure through the Undead World to fight against hordes of zombies with your squad of heroes. The game has a gacha collecting system where you can recruit heroes from four different factions, level them up, and rank them up to Legendary or Unique status.

In Undead World: Hero Survival, you can collect rewards even when you're AFK through Idle Rewards, which fill up throughout the day, and Instant Rewards, which grant two hours' worth of Idle Rewards for immediate resources. After each battle or quest, you'll receive even more resources to help in your survival. The game also offers a variety of game modes, including Midtown, PvP in the Arena, and the Zombie Express's gauntlet mode to test your survival skills.