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Mortal Shell 2: Mortal Shell II: Rotten Autumn Update Brings New Content and Seasonal Treats

New Alternative Soundtrack By Rotting Christ’s Sakis Tolis. Straight from the developer's own notes.

20/10/2026 · 1 min read

Taken from the developer's own announcement, quoted rather than summarised. The full post is linked at the foot of this page.

It’s that time of year. Rotten Autumn is upon us and with it comes a load of free updates to the core Mortal Shell II experience along with a few seasonal treats.

No tricks here. Take a look below to see what’s in store for you.

Here are the highlights of everything you get in the Rotten Autumn update, which is now live on Steam, PS5 and Xbox.

  • Photo Mode
  • New Alternative Soundtrack By Rotting Christ’s Sakis Tolis
  • 15 New Dungeons
  • All New Shell Shades for Each Shell
  • 10 New Tarstones
  • Sheep Specific Tarstone
  • New Lighting Presets for Nightmode
  • Overkill Graphics Settings
  • Harbinger Pumpkin Helmet
  • Impervious Lute skin and Additional Lute tracks
  • The ghost of a lost Shell haunts the land and offers cryptic notes
  • Additional polishes and bug fixes

Thanks again for all your support of Mortal Shell II. There’s more coming, but for now all we’ll say is that despite whatever you’ve heard—there is no sheep dungeon.

If you want to join the community or drop us a message check out our Twitter, Discord, Facebook or Instagram.

Enjoy the update,

  • Team Mortal Shell