The Otherworldly Amulet is an item obtainable from the Dungeon Guardian with a 10% drop chance in normal mode, and a 20% drop chance in Expert Mode.

If the player has the Otherworldly Amulet in their inventory, the Alchemist NPC will sell Celestial's Particle, which is a material used in various crafting recipes.

The Otherworldly Amulet is also used in the recipe for the Watcher Amulet.

The Otherworldly Amulet can also be equipped as a mount. Using the amulet will summon the Poro mount, which is a reference to the Poro creature from League of Legends.