Gem cutting & breakage

Faceting a ruby at the gem-cutting table
Official Steam store screenshot · © Light Worm / XD

Demo-based Last checked: 2026-10-26

What the store confirms

Damage rule (Steam discussion — player-confirmed)

From Steam Discussions (Zebrion):

Label: player claim, repeatedly echoed. Not copied from an official patch note. We will rewrite if Light Worm publishes different numbers.

Stress points / weak spots

Players describe marked stress points that propagate shock through the stone — useful for bulk rock when your tool is safely below gem stats, risky when numbers are close. Unverified as exact math; treat as community technique, not a data table.

Acid etching (player tip)

On the same breakage thread, a player suggests acid can eat high-breakage surface so a cleaner face remains — and warns it can also eat healthy gem quickly. Unverified beyond that thread

Exterior vs interior gems

Another reply claims exterior gems often spawn with pre-damage; internal gems exposed via weak points tend toward lower starting breakage. Again: player observation, not store text.

Extract, then facet

  1. Extract the mineral from waste rock with tools set to the medium.
  2. Separate gems (tutorial entry exists in 0.2.11).
  3. Choose a faceting / cut method that matches the commission’s cut shape family.
  4. Set into jewelry fittings when the commission requires a finished piece.

We do not publish invented hardness charts, price lists, or “best shape” rankings until they can be cited from official notes or reproducible demo checks.