Mortal Shell II Walkthrough: All 6 Corrupted Gates (2026)

This Mortal Shell II walkthrough exists because the game itself won't give you one. It doesn't hand you a map with numbered waypoints, it hands you Fainweald, points you at the first Corrupted Gate, and lets you figure out the rest. That's fine once you know the shape of the world, less fine on your first three hours when you're not sure if you're supposed to be in the swamp yet or if that's where you die. What follows lays out the two overworld regions, all six Corrupted Gate dungeons, and a route that keeps the difficulty curve sane, without pretending the game's mid-game boss order is more settled than it actually is.

TL;DR: Mortal Shell II splits into two overworld regions, Fainweald and Mammon, each containing three Corrupted Gate dungeons (six total). Clear all six and the Unfound Path opens, leading to the final boss, Zmey the Unbidden. The gates aren't strictly ordered, but starting in Fainweald and finishing in Mammon keeps gear and Shell progression roughly matched to what each gate expects.

How many areas does Mortal Shell II have? (quick answer)

Two main overworld regions, Fainweald and Mammon, each home to three Corrupted Gate dungeons for six total, plus a final area called the Unfound Path that only opens once all six gates are cleared. Fainweald is where the game starts you after the tutorial; Mammon opens up once you've made enough progress there. This structure is consistent across every walkthrough source we checked, unlike the exact order and count of individual boss fights inside those gates, which is still genuinely disputed community-wide.

Key takeaways

• Mortal Shell II has 2 overworld regions (Fainweald, Mammon) and 6 Corrupted Gate dungeons (3 per region), confirmed across multiple independent walkthrough sources.
• The gates aren't hard-locked in order. This guide's route (Fainweald's three gates, then Mammon's three) keeps difficulty roughly matched to your gear rather than forcing a sequence.
• The Unfound Path is the endgame area, reached only after all six gates are down. It ends with Zmey the Unbidden, a dragon fight built around dodging Cosmic Flame breath.
• We deliberately don't rank the individual mid-game bosses in this guide. See our achievements guide for why that specific list is still disputed weeks after launch.
• Bring your best Seal and a weapon you trust before Mammon. The back half of the campaign leans harder on enemy pressure than Fainweald does.

The two overworld regions: Fainweald and Mammon

Fainweald is the region you land in once the opening tutorial stretch ends, and it's the one every major walkthrough treats as the intended starting point. It's open rather than linear: once you're free to explore, nothing stops you from wandering toward a gate you're not ready for, which is the single most common way new players get flattened in the first few hours. Mammon is the second overworld region, reached after enough of Fainweald is cleared, and it's consistently described as the harder half of the map. Our own Mortal Shell II review flagged a real difficulty spike and more reused "regular enemies standing in as bosses" in the campaign's back half, and Mammon is where that back half lives.

Both regions are non-linear. You can return to Fainweald after you've started Mammon, so a Shell or item you missed early isn't gone for good. That matters more than it sounds like it should: several of the game's Shells and Tarstones sit in side pockets of Fainweald that are easy to walk past the first time through, per our achievements guide's own Shell rundown.

Step-by-step: a Corrupted Gate route that works

1. Clear Fainweald's tutorial stretch and reach your first Beacon: Get through the opening area, learn how Harden and your equipped Seal actually behave in combat (see our parry guide if the Untarnished Seal's block-only behavior is throwing you off), and light your first Beacon before pushing further.

2. Take Glutted Mire first: Of Fainweald's three Corrupted Gates, Glutted Mire is the one most walkthrough sources point new players toward first. It's a swamp-and-ruins zone, heavier on ranged and ambush enemies than on one big fight, which makes it a reasonable gear check before the other two gates.

3. Move to Sanguine Caverns: A cave-and-shoreline zone with tighter corridors than Glutted Mire. Expect more melee pressure in confined spaces. If Harden (the Vatras Seal) is your defensive option, this is a zone where holding it early rather than late pays off more often than not.

4. Finish Fainweald with Prisoner's Domain: The third Fainweald gate, built around scaffolding, drops, and captive-themed enemy placement. It's the gate most commonly described as Fainweald's real difficulty ceiling, so clearing it last (after Glutted Mire and Sanguine Caverns) means you're not walking in underleveled.

5. Cross into Mammon and take Conqueror's Temple: Mammon opens once Fainweald's gates are down. Conqueror's Temple is the region's more straightforward entry point relative to the other two Mammon gates, making it the natural first stop here too.

6. Push through Withered Shoals: A rougher, more attrition-heavy zone than Conqueror's Temple. This is where the review's "recycled regular enemies standing in as bosses" complaint is most noticeable, so expect more sustained fights than single dramatic ones.

7. Clear Faded Citadel, Mammon's third gate: The last of the six Corrupted Gates. Multiple sources describe it as the toughest of the three Mammon gates, which is why it's positioned last in this route rather than first.

8. Enter the Unfound Path: Once all six gates are cleared, the Unfound Path opens as the game's final area, leading to the last confrontation.

None of this sequence is mandatory. Mortal Shell II's world design lets you attempt gates out of order, and some players deliberately do Mammon's easier gate before finishing Fainweald's hardest one. This route is a recommendation for a first playthrough, not a lock.

Caption: A tunnel choke point on the way into a gate, exactly the kind of multi-enemy funnel that punishes rushing in without checking your Seal first.

GODEEPER: Confused about why your Seal isn't blocking the way you expect mid-fight? Mortal Shell II Parry Guide: All 4 Combat Seals Explained →

Fainweald's three Corrupted Gates in more detail

Glutted Mire leans into verticality and murky sightlines. Ranged enemies perched above the mire are the main threat, more than any single boss-type encounter. Bring a weapon with decent reach if you can, since a lot of the danger here comes from getting swarmed while closing distance on a ranged attacker.

Sanguine Caverns trades the mire's openness for tight cave corridors and a shoreline stretch. Enemy density goes up, individual enemy difficulty goes down slightly. This is a zone where a faster weapon that lets you clear adds quickly outperforms a slow heavy hitter, a pattern that echoes what our weapons tier list found when it ranked mobility-focused weapons like the Axatana above the game's biggest, slowest options.

Prisoner's Domain is scaffold-and-drop heavy, with captive-themed enemy placement that punishes careless pathing more than raw stat checks. Multiple community walkthroughs single this gate out as Fainweald's real wall, which is the main reason this guide's route saves it for last in the region.

Mammon's three Corrupted Gates in more detail

Conqueror's Temple is Mammon's most approachable gate on paper, but "approachable" here means relative to Withered Shoals and Faded Citadel, not relative to anything in Fainweald. Expect a genuine step up in enemy aggression the moment you cross over.

Withered Shoals is where the campaign's back-half difficulty complaints, the ones our review raised, are most concrete. It's less about one hard fight and more about sustained pressure from enemies that don't feel meaningfully different from Fainweald's regular mobs but hit harder and show up in worse numbers.

Faded Citadel, Mammon's third and final gate, is consistently flagged as the hardest of the six across the sources we checked. Clear it last and you're doing so with a fully built-out Shell and weapon loadout instead of walking in early on a gear check you're not ready for.

Caption: The kind of open, exposed engagement Mammon's gates favor over Fainweald's tighter, more ambush-driven layouts.

The Unfound Path and Zmey the Unbidden

Clearing all six Corrupted Gates opens the Unfound Path, the game's final area. It's a capstone, not another open zone to wander: less exploration, more direct build-up to the last fight. That fight is against Zmey the Unbidden, described consistently across community sources as a dragon-type encounter centered on a Cosmic Flame breath attack. The fight rewards mobility and spacing over trading hits at close range, a different rhythm than most of the Corrupted Gate content leading up to it.

We're not going to pretend we've independently verified every mechanical detail of that fight from a primary source. What's consistent across the sources we checked is the broad shape: a mobility-check boss, not a pure damage race, gated behind all six Corrupted Gates being cleared first.

GODEEPER: Want the full breakdown of which weapons actually carry you through Mammon's harder gates? Mortal Shell II Weapons Tier List →

Why we're not ranking the "10 main bosses" here

Most souls-like walkthroughs on this site name every boss in order. This one doesn't, on purpose. Our achievements guide dug into this specifically and found a Reddit thread from the community's own boss-guide creators still disputing the exact order and count of the game's main bosses, weeks after launch, on top of roughly 45 boss-tagged enemies total once you count the game's smaller reused encounters. Publishing a confident numbered list against that backdrop would mean picking a side in an argument the people building dedicated boss guides haven't settled themselves.

What isn't in dispute, and what this guide sticks to, is the zone structure: two regions, six named Corrupted Gates, one final area. That held up consistently across every walkthrough source we cross-checked, which is a meaningfully different (and safer) claim than "here are the 10 bosses in order."

Tips for a smoother first run

Fast-travel between Beacons early and often. Mortal Shell II doesn't force backtracking on foot the way some of its genre peers do, and skipping the walk back to a merchant or a missed Shell costs you nothing but a menu press.

Don't fully commit to one Shell before you've tried at least two. Our achievements guide names all 8 by rarity, and the differences between them change how forgiving your early runs feel more than most players expect going in.

Check your equipped Seal before blaming your reflexes. If parries feel inconsistent, you may still be on the starting Untarnished Seal, which is a hold-block, not a true parry. That distinction alone explains a lot of "this game feels unfair" complaints in the game's first few hours.

Keep at least one ranged option or gap-closer for Glutted Mire specifically. It's the one Fainweald gate built around punishing melee-only builds that can't deal with elevated ranged enemies.

Related Reading

• Mortal Shell II Review: our full verdict, including the back-half difficulty spike this walkthrough's Mammon section references.
• Mortal Shell II Parry Guide: All 4 Combat Seals Explained: what Untarnished, Infinite, Vatras, and Slayer actually do, since your Seal choice changes how every gate in this guide plays.
• Mortal Shell II Weapons Tier List: which weapons and infusions carry you through Mammon's harder gates.
• Mortal Shell II Achievements Guide: all 53 achievements, all 8 Shells named, and the fuller explanation of why this site won't publish a ranked main-boss list yet.

Frequently Asked Questions

How many areas are in Mortal Shell II? Two overworld regions, Fainweald and Mammon, each holding three Corrupted Gate dungeons, plus the Unfound Path as a final area once all six gates are cleared. That's the structure every major walkthrough source agrees on.

Do I have to clear the Corrupted Gates in a specific order? No. Mortal Shell II is open-world after the opening stretch, and the six gates can be tackled in almost any order. This guide gives a route that keeps difficulty roughly even, not a mandatory sequence.

Is Fainweald or Mammon easier to start with? Fainweald. It's the region you land in after the tutorial, its three gates are tuned for an undergeared character, and every major source treats it as the intended starting region before Mammon opens up.

What is the Unfound Path in Mortal Shell II? The final area, reached only after all six Corrupted Gates are cleared. It leads to the last boss, Zmey the Unbidden, a dragon-type fight built around dodging Cosmic Flame breath rather than trading hits.

Does this guide rank all the game's bosses in order? No, and that's deliberate. Our achievements guide found active community disagreement over the exact order and count of the game's main bosses. This guide sticks to the zone structure, which every source agrees on.

How long does a full Mortal Shell II walkthrough take? Clearing all six Corrupted Gates plus the Unfound Path runs roughly 25-35 hours for a first playthrough that explores each zone, based on the pacing described across community walkthrough guides. Rushing the six gates alone is faster.

Can I go back to Fainweald after reaching Mammon? Yes. Mortal Shell II doesn't lock you out of earlier regions once you've moved on, so side content and missed Shells in Fainweald remain reachable after you've started clearing Mammon's gates.

References

• Mortal Shell II on Steam: official store page, price, and review data
• Cold Symmetry: developer's official site
• Mortal Shell II: Complete Walkthrough and List of Areas, Game8: zone and Corrupted Gate structure cross-referenced for this guide
• Mortal Shell 2 Boss Order: The Route That Works, Neon Sect: final boss confirmation and route framing cross-referenced for this guide
• r/MortalShell: official community subreddit