Fallgrim does not hand you its best tools. Most of the 16 weapons and sidearms scattered across Mortal Shell II are locked behind dungeons, minibosses, puzzle rooms, and at least one encounter that plays like a horror game inside an already grim action RPG. Knowing where to look saves hours of backtracking.
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How the 16 armaments are spread across Fallgrim
The distribution is fairly clean once you understand the game's structure. Two pieces come free during the prologue. Six more are planted across Fainweald, the first major open region. The final eight sit in Mammon, the later zone that opens up as the story progresses.
Every weapon and sidearm can be upgraded at the Tarforge in Marrow Keep, provided you have enough coins and the right smithing stones. Worth keeping that in mind as you collect them, since some pieces that seem underwhelming at base level become genuinely useful after a couple of upgrades.
The prologue gives you a head start
Unlocking the Harros shell during the prologue automatically hands you two items: the Iconoclast, a standard one-handed sword, and Naylshotte, a shotgun-style sidearm that fires a spread of projectiles at close range. You also receive the Untarnished Seal here, which enables blocking. These three pieces form your foundational kit before Fallgrim opens up properly.
Six armaments hidden in Fainweald
Fainweald is where the game starts testing whether you actually explore or just run through. The Forgotten Crossbow is buried in the Flooded Village dungeon, accessible through a stone arch blocked by wooden boards near the rope bridges below Widow's Overlook. Smash the boards, ride the elevator down, grab the Damp Key from the house at the back of the pools, and the crossbow is yours.
The Veteran's Battle Axe sits in the King's Crypt, a cavern along the path where you unlock the Proxima shell. Clear the enemies and pull it from the sarcophagus at the end.
The Axe & Dagger requires the Chapel Key, found on a plateau near the Mushroom Village beacon. The tower it unlocks has three puzzle rooms: one with a fake wall you back away from to reveal, one with stone blocks and pressure plates, and a final room guarded by an Armored Knight.
For sidearms, the Troubadour's Lute is sitting on the stage inside the One-Legged Wolf tavern in eastern Fainweald. It causes confusion in enemies, making them attack each other, which is as useful as it sounds in tight corridors. The Salvaged Trebuchaxe (which fires axes, because of course it does) drops from the Bloodcursed Lithopod boss in the Ravaged Hideout at the base of the Citadel of Penance. The Great Martyr's Blade, a melee weapon with strong synergy for Eredrim shell aura builds, is the reward for clearing the Martyr's Prison dungeon just east of that same Citadel.
Eight more waiting in Mammon
Mammon is denser and more punishing. The Obsidian Hammer is inside the Obsidianite Mines, reached by dropping into a quarry pool west of the Outskirts of Mammon beacon. A Prophet of Profane Infinites miniboss guards it at the bottom of a chasm.
The Ballistazooka sidearm is inside the Lonesome Spire's Sentry's Grave dungeon, defended by Ballista Head enemies whose projectiles explode on impact. The miniboss here, the Subjugated Guardian, is best handled at close range to cut off its ranged attacks entirely.
The Triarch Repeater sidearm lives in the Blackwell Cavern, a near-pitch-black dungeon reached by following the cliffside path east-southeast from the Castigator's Keep beacon. Visibility drops to almost nothing inside, so take it slow.
The Cursed Child and the Axatana are both tied to the Sester's Abbey area. The Cursed Child sits at the top of the Revered Beacon dungeon, which features an Eye of Sauron-style spotlight that depletes your health if it catches you. The Axatana is in the Forgotten Tower, accessed by dropping past the Rollerball enemy near the abbey and using a jump gate to cross the ravine.
The Black Needle spear drops from the Stray Sester at the end of the Sester's Gate beacon dungeon, after a Twin Sesters boss fight. And finally, both the Clockwork Scythe and the Caged Hystrix sidearm come from the same sequence: fighting Sariel twice near the Silent Steps beacon, with the scythe dropping from Sariel himself and the Hystrix found near the Chamber of Becoming exit.
That covers every armament in Fallgrim. For players trying to judge how long it realistically takes to collect everything, the how long to beat Mortal Shell 2 guide has solid estimates across casual and completionist runs. More coverage of the game, including shell locations and Tarforge upgrade paths, is collected in the full Mortal Shell II guides hub.
