Formerly the game’s elusive tutorial boss, Hadern becomes the fifth playable shell. His skill tree is unique, allowing him to inherit traits from the other four shells, making him the most versatile character in the game.

Mortal Shell , developed by Cold Symmetry, initially garnered acclaim for its "souls-like" mechanics centered on the unique "Hardening" system. However, the release of The Virtuous Cycle DLC—specifically version 1.014707—marked a significant shift from a linear atmospheric journey to a repeatable, high-stakes roguelike experience. This expansion addressed core community desires for increased longevity and mechanical variety.

Version 1.014707 integrates two primary assets into both the expansion and the main campaign:

The titular "Virtuous Cycle" mode fundamentally alters the game's pace:

Players collect over 100 "Instincts"—randomized upgrades ranging from simple stat boosts to exotic weapon maneuvers. This allows for diverse build-crafting, transforming the Foundling into an increasingly powerful entity within a single run.