Fallout: A Post Nuclear Role Playing Game is a 1997 role-playing video game developed and published by Interplay Productions. In a mid-22nd century post-apocalyptic and retro-futuristic world, decades after a global nuclear war, Fallout's protagonist, the Vault Dweller, inhabits the underground nuclear shelter Vault 13. After customizing their character, the player must scour the surrounding wasteland for a computer chip that can fix the Vault's failed water supply system. They interact with other survivors, some of whom give them missions, and engage in turn-based combat where they battle until their action points are depleted.