Doomsday Shelter: Survival

"Doomsday Shelter: Survival" is a single-player strategy game where you build and manage a shelter to survive in a post-apocalyptic world filled with zombies. The game is very grinding, requiring players to put in a lot of time and effort to progress. However, the experience is often interrupted by intrusive and annoying ads. Your main goal is to stay alive and expand your shelter while fending off zombie attacks.