Limb is a shared-spawn survival challenge built around the Random Item Giver Data Pack. The world starts with all blocks removed except the spawn area, and everything beyond spawn is placed by players, creating a skyblock-like feel without separate islands. Upon entering the world, you receive a random item every 20 seconds; it can be anything except command blocks, so progression can swing from rare mob spawn eggs to decorative trophies. Private areas are available for protecting your space as the world is rebuilt from scratch.