Fallout Zero is a quest mod , complete with its own world and backstory set two months after the outbreak of the Great War. The mod includes several new game features: a reactive people helmet, a drivable metro car, craftable objects, an original basic needs system (hunger, thirst). The player is teleported to Zero world with a level 1 Character /see walkthrough video to see how to start this mod/, an empty inventory and the possibility to choose their character’s attributes. After completing the story, the player is ‘returned’ to the original world of Fallout 3, retaining the level and attributes their character had possessed before starting the mod.