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Mortal Shell 2 Tarstones Guide: All 4 Types & How to Socket Them

Updated Aug 31, 2026 锝?Socketable weapon & Shell upgrades
馃幆 TL;DR: Tarstones are socketable upgrades with 4 types (Support / Combat / Infusion / Ability). Capacity is capped at 10 total, and they level up to 4.

1. The 4 Tarstone Types

TypeWhat it does
SupportPassive bonuses that don't depend on the weapon or sidearm
CombatTrigger on hits or shots
InfusionHold a button to temporarily enchant your weapon (poison, curse, frost) at the cost of Resolve
AbilityPress a button to unleash a powerful skill that costs Resolve

2. Socketing & Capacity

馃挕 Note: There are 73 Tarstones in the game. Your menu shows two extra empty slots on purpose 鈥?don't panic, that's intended.

3. How to Level Up Tarstones

  1. Go to the Tarforge, an ancient machine in Marrow Keep
  2. Hand Franz the Etching Needle to unlock upgrading
  3. Tarstones upgrade up to level 4 鈥?level 2 yields a Tarcore; level 3 costs 150 Gold + 6 Tarcore
馃挕 Upgrade strategy: Tarstones gain levels by defeating enemies while equipped. If you're about to explore an area, equip the Tarstone you actually want to improve.
馃幆 Bottom line: "Match the Tarstone type to your playstyle, socket the 10 slots you have, and level the ones you use by killing while equipped."

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