Description:

Endless Chamber gives each player a private, indestructible 50×50×50 sanctuary placed at the world border that you can teleport into and back out of, with walls that prevent leaving while inside. Right‑click with the Endless Chamber item to teleport into your personal room (it saves your previous location) and right‑click again to return to that saved spot; the item behaves like a normal in‑game tool and integrates with recipes, advancements, and the creative tab.