Based on the filename mortalshellv109227repackkaos, you are playing Mortal Shell: The Virtuous Cycle (v1.09.227), which is the major DLC update that added the axe, the crow hammer, and the roguelike mode.
Hardening: Instead of a traditional shield, you can turn your body to stone at any moment—even mid-swing. This adds a rhythmic, tactical layer to combat.
If you are specifically looking for why this version is "patched," it includes the following improvements over the initial v1.0 release:
Shell System: Unlike traditional RPGs, you "occupy" the remains of fallen warriors (Shells), each with unique stats and playstyles (e.g., Harros for balance, Eredrim for high health).
So, what sets Mortalshellv109227RepackKAOS patched apart from other games in the genre? Here are some of its key features: