"The Day Zombie City" is an iPhone game where players step into the shoes of Tom, who is facing a sudden zombie apocalypse in his once peaceful neighborhood. The game offers an immersive experience where players must help Tom survive by defeating hordes of zombies and upgrading his skills.

In this survival game, players can customize Tom's appearance with various weapons and outfits, level up to learn new skills, and strategize to overcome increasingly difficult battles. The game provides tips on using gears to alter Tom's appearance, leveling up to enhance basic stats, and defeating bosses to earn accessories. With features like dash and double jump to improve performance, players must navigate through stages, gathering gold to upgrade Tom and progress through the game.