Happy Z-Day — another strategy with elements of horror, where the player will tell the story of the main character, the father of the girl whose birthday is today. Something happened in this city. Almost everyone turned into a monster. You need to protect your daughter and her birthday. Happy Z-Day is a game defense, similar to Tower Defense, in the style of shooting from top to bottom. The game takes place at home or on a farm with a barn or even on the roof. Depends on the levels. The enemies you need to fight are those that have contracted the virus and turned into zombies. Each type of zombie behaves differently. Some zombies will be furious when night falls. The goal is to live a certain number of nights, after which your daughter will finally be able to celebrate her birthday. If you die or your daughter’s birthday is ruined, you lose.