Days After: Zombie Survival is a free iPhone game developed by REACTGAMES STUDIO LIMITED. It is a challenging survival simulator where the player must survive in harsh conditions and collect resources to craft equipment and tools. The game offers various features like constructing weapons, building bases, and fighting off wild animals and zombies. The player must deal with hunger, thirst, unforgiving conditions, and a mysterious virus.

The game offers a diverse set of locations to explore in an abandoned, plagued world. The player can pick up survivor diaries to uncover the story of the infection that led to the apocalypse. The game also offers quests, raids, and bandit outposts to challenge the player. The closer the player gets to civilization's ruins, the more zombies attack. Missions become harder, but the rewards are bigger. The player can find rare resources, powerful weapons, and most importantly, more information about this world.