Mortal Shell 2 Walkthrough
Official promotional artwork: Steam / Cold Symmetry / Playstack
Main story route
1. Prologue
Claim the starting loadout, complete the Festival interaction if achievement hunting, and attempt the scripted Tar Golem objective before the sequence closes.
2. Marrow Keep
Unlock the central hub, learn the Gloom Siphon objective, inspect the Tarforge and Shell progression systems, and choose the first Fainweald route.
3. Early Fainweald
Cleanse nearby Beacons, secure an early permanent Shell, open Mushroom Village routes, and collect enough upgrades to stop relying on the prologue loadout.
4. Fainweald Gates
Clear Glutted Mire, Sanguine Caverns, and Prisoners' Domain in an order that suits your build. Each gate culminates in a major boss and Ova reward.
5. Mammon
Use the interconnected route to explore the second region, unlock later Shells, and prepare for Conquered Temple, Withered Shoals, and Faded Citadel.
6. Unfound Path
After reaching the Ovum requirement, return to Marrow Keep, open the route below the Gloom Siphon, and clear its three guardian branches.
7. Final boss
Defeat Zmey, the Unbidden, then return to free roam for cleanup. New Game Plus starts only when you select Send Ova.
Six Corrupted Gate dungeons
| Region | Dungeon | Major boss |
|---|---|---|
| Fainweald | Glutted Mire | Magdalena, Lady of the Woods |
| Fainweald | Sanguine Caverns | The Lost Child |
| Fainweald | Prisoners' Domain | The Nameless Captive |
| Mammon | Conquered Temple | Droeg the Conqueror |
| Mammon | Withered Shoals | Hexapod |
| Mammon | Faded Citadel | Isaac, the Scholar Prince |
Each gate boss contributes major Ova progress. Your best order depends on which Shell, weapon, and boss reward best supports the current build.
Official launch trailer
Official video: Cold Symmetry / Playstack
Do these early if you want 100%
- Complete the Festival interaction for Mid Summer? during the prologue.
- Attempt No, You Still Can't Win during the scripted Tar Golem sequence.
- Avoid spending every Glimpse on summons if all Shell Memories are your long-term goal.
- Read the in-game warning before equipping any difficulty-changing Seal; community descriptions of achievement restrictions currently conflict.
- After Zmey, finish free-roam cleanup before selecting Send Ova.
Next guides
Boss order and locations
Find the mandatory, optional, gate, and endgame encounters.
All Shells
Unlock routes for the eight permanent warrior Shells.
Point of no return
Finish the pre-Send Ova checklist.