Mortal Shell 2 Tarstones Guide
Count conflict: launch guides currently report 75 Tarstones, while some live map databases label 77 markers. One map database also displays category totals that add up to 75. Until a patch-specific official list resolves this, use the in-game Stoned achievement state and inventory slots as the completion authority.
How Tarstones work
Tarstones customize weapons, sidearms, and Shells rather than replacing them. Launch types are Support, Combat, Infusion, and Ability. The Week 1 Update added Fragile as a fifth class — see Fragile Tarstones.
- Support: passive bonuses such as critical, defense, resource, or reward effects. Fragile stones use these slots.
- Combat: effects triggered by attacks, kills, status, or repeated actions.
- Infusion: spends Resolve to apply an elemental or status effect.
- Ability: active Resolve-powered attacks tied to compatible gear.
- Fragile (Week 1): wear down, then break into Tarcore plus Coin, Gloom, a dungeon-entrance revive, or Glimpses. Not unique; farm extra copies from Lithopods.
Useful Tarstones and verified locations
| Tarstone | Type | Location | Why it matters |
|---|---|---|---|
| Auspicious Stone | Support | Chest at the entrance area of Mushroom Village | Raises melee critical chance |
| Berserker's Stone | Support | Chest in the Temple of Vatra grounds | Offensive support option |
| Marksman's Stone | Support | Trial left of Mushroom Village Gate | Useful for ranged-focused builds |
| Gloombound Stone | Fragile (Week 1) | First copy: graveyard chest. Extra copies: Lithopods | Now a Fragile +30% Gloom stone; see Fragile Tarstones |
| Parasitic Stone | Combat | Church dungeon behind the Arbiter of Flesh | Builds Leech stacks from kills |
| Corroded Stone | Combat | Sunken Village Beacon | Early combat-slot option |
| Arbiter's Prize | Infusion | Great Arbiter of Flesh near Widow's Overlook | Bloodcurse melee infusion |
| Voltaic Crown | Infusion | Nochtean Gate Beacon boss | Lightning-oriented infusion |
| Emberseed Stone | Infusion | Mushroom Village Beacon | Early elemental infusion |
| Unwieldy Stone | Ability | Purchase from Merrick | Resolve-powered charged heavy attack |
| Hand of Rock | Ability | One Legged Wolf tavern merchant | Homing projectile ability |
| Lost Clotstone | Ability | Defeat The Lost Child | Boss ability reward |
| Captive's Scabstone | Ability | Defeat The Nameless Captive | Boss ability reward |
Build planning rules
- Choose the weapon ability first, then fill passive slots around how that ability spends Resolve.
- Do not fully upgrade every early stone; reserve materials until the main weapon and sidearm pairing is stable.
- Keep one general exploration setup and one boss setup instead of treating a single loadout as universal.
- Before NG+, collect unique stones you can already reach; owned Tarstones carry over and their old pickup locations may become upgrade materials.
Tick every named stone: Tarstone location checklist. Launch-week ranking: best Tarstones · Duality Stone route · Fragile / Glimpse Stone · Tarcore and smithing stones
Weapon compatibility reference · NG+ carry-over guideWhy this is not labeled an all-locations list yet
Several launch-week lists still mark entries as unconfirmed, and published totals conflict. This page therefore prioritizes named, cross-checkable stones and explains the system. It will only be promoted to a complete tracker when every in-game name, category, and location can be tied to a stable build.
Evidence: mechanics are consistent with the official Steam description of extensive weapon upgrades. Named effects and locations were checked against GamesRadar's launch guide and the current Fallgrim map database. Count disagreement is intentionally preserved. Verified August 23, 2026.