RELATED: Best Zombie Games From The Last Decade This makes State of Decay 2 maps very important. While there are some quests to play through, the story takes a back seat to exploration, base building, and crafting a safe haven to stave off the wandering zombies. Undead Labs' State of Decay 2 mostly sticks to the same formula as its predecessor, delivering an open-world survival game with a heavy focus on scavenging and resource management.