Calamity Mod Wiki
  • Terminus.png
Stack digit 1.png
Use time45 Very Slow
TooltipA ritualistic artifact, thought to have brought upon The End many millennia ago
Sealed away in the abyss, far from those that would seek to misuse it
Activates Boss Rush Mode, using it again will deactivate Boss Rush Mode
During the Boss Rush, all wires and wired devices will be disabled
RarityRarity Level: 1
SellNo value

Terminus is a non-consumable summoning item that is used to start and cancel the Boss Rush event. It can only be obtained by finding it in the Shrine at the bottom layer of the Abyss.


  • Using Terminus while a boss is alive will instantly despawn the boss and trigger the Boss Rush.
  • Using Terminus to deactivate the Boss Rush will not display a status message.


  • The word "terminus" means the end, the limit, or the final goal.
  • In previous versions of the mod, the item could alternatively be obtained as a drop from Jungle Dragon, Yharon's second phase.
  • This item can be obtained earlier than intended with a combination of the Abyssal Diving Gear and the Aquatic Emblem. While the Boss Rush can be triggered at any time, the player will find themselves at a very great disadvantage if they use it before Supreme Calamitas.