《Terraria: Calamity Mod》是一款於 2016 年發布的 PC 遊戲模組，它極大地擴展了核心的沙盒生存體驗。玩家將面對更多強大的 Boss、新增的五個生態群系，並可體驗更具挑戰性的難度設定。此模組引入了新的角色職業、超過三十首配樂，並增加了大量原先無法製作的物品配方，持續豐富了遊戲的探索與戰鬥深度，深受追求極致挑戰的玩家社群歡迎。
An extension mod for Calamity that adds an extra difficulty - Infernum This difficulty is harder than Death mode and can be activated with the difficulty selection UI in Calamity. The primary focus of the mod is expansive reworking of boss AIs. Some bosses gain extra phases for maximum "It's not over yet!" energy.
Soren