Kill enemies on the Dreadnaught. Death resets your progress.
― In-game description
The Wormfeeder Rune is a consumable dropped by a Hive ultra summoned through the use of a Wormsinger Rune. Once acquired, the rune must be charged by killing 50 enemies on the Dreadnaught without dying. After this is done, the rune will transform into one of the below keys at random:
- Key of Akka, which opens the Chest of Akka
- Key of Eir, which opens the Chest of Eir
- Key of Gnashing Teeth, which opens the Chest of Gnashing Teeth
- Key of Maggots, which opens the Chest of Maggots
- Key of the Spawn, which opens the Chest of the Spawn
- Key of Ur, which opens the Chest of Ur
- Key of Wyrding, which opens the Chest of Wyrding
- Key of Xol, which opens the Chest of Xol
- Key of Yuul, which opens the Chest of Yuul
Using any of these keys on their respective chests will reward engrams, Court of Oryx runes, Wormspore, and Calcified Fragment XXXVIII: The partition of death.