About NorthernGemcraft
From ThunderstorePut your Deep North Ancient Coins and gemstones to use: set gems into armor and weapons at the crafting station and polish them for small, capped bonuses. No new buildings or items.
Northern Gemcraft
Sitting on a pile of Ancient Coins and gemstones you can only sell? Put them to work.
The Deep North showers you with Ancient Coins and four kinds of gemstone: Grimvarn, Solryth, Veydris and Draumyx. Vanilla only lets you sell them. Northern Gemcraft lets you set those gems into your best armor and weapons at a fully upgraded black forge or Galdr table, and polish them with Ancient Coins. Each gem gives a small benefit and a smaller drawback. No new buildings, no new items: just a meaningful use for your Deep North loot that keeps the game's balance.
Requirements
- Valheim 1.0.20 or newer, with BepInExPack for Valheim.
- Multiplayer: install on the server and on every player (see Multiplayer).
- To use it in game:
- a fully upgraded black forge (level 6, all extensions) or Galdr table (level 5, all
extensions),
- Ashlands-tier gear or better made at that station (Flametal, Ashlands weapons, Ashlands
mage gear and staffs, and all Deep North gear),
- Deep North gemstones and Ancient Coins.
Getting started
- Find Ancient Coins and gemstones in the Deep North.
- Discover enhancing: open the crafting menu of a fully upgraded black forge or Galdr table
while you carry (or have picked up before) an Ancient Coin and a gemstone. You get a "Discovered: Enhancing" message for each gem you know. This happens once per character.
- Open the ENHANCE tab next to CRAFT and UPGRADE at that station. It lists your eligible gear
made at that station, one row per action:
- Set a gem (gems you have discovered): one gemstone plus Ancient Coins. The item gets the
gem at grade I. Rows show even before you have the gem or coins; like vanilla recipes, they are greyed out and the missing cost blinks red until you can afford them.
- Polish: more of the same gem plus more Ancient Coins, up to grade III. Each grade adds the
gem's effects again.
- Remove: Ancient Coins. The gem is destroyed (configurable).
- Select a row, check the cost on the right, and press the button. The station-level icon shows
the level enhancing needs.
Gems
Each gem has a benefit and a smaller drawback. Values are per grade; grade III gives three times as much.
| Gem | On armor | On a weapon (while in hand) | | --- | --- | --- | | Grimvarn (green) | +1% max health, -1% stamina regen | +10% durability, +1% stamina per attack | | Solryth (orange) | +2% stamina regen, -0.5% max health | -3% stamina per attack, -5% durability | | Veydris (purple) | +2% eitr regen, -1% stamina regen | -3% eitr per cast, -5% durability | | Draumyx (black) | -1% physical damage taken, -0.5% movement speed | 1% life steal, -2% health regen |
- Armor (helmet, chest, legs, cape, shield) counts while worn, and all worn pieces add up.
- Weapons count while in your hands. Durability changes the item itself.
- Caps: a gem's main benefit (listed first) is capped for your whole kit: max health +10%,
stamina regen +15%, eitr regen +15%, physical damage taken -8%. When a cap cuts a benefit, that gem's drawback is cut by the same share.
- Life steal heals you for a share of the damage you deal, up to the enemy's remaining health.
Hitting players or tamed creatures heals nothing.
Costs
| Step | Gems | Ancient Coins | | --- | --- | --- | | Set (grade I) | 1 | 20 | | Polish to II | +1 of the same gem | 60 | | Polish to III | +2 of the same gem | 150 | | Remove | - | 30 |
One piece at grade III takes 4 gems and 230 Ancient Coins.
What you see in game
- Item tooltips show the gem and grade, with its effects: benefits in green, drawbacks in red.
- Tooltips also list your totals from all gems together, with each cap and whether it is
reached.
- Weapons show their enhanced stamina and eitr cost in parentheses next to the normal value, e.g.
Use eitr: 20 (17.4).
- The movement speed total includes gem effects.
Good to know
- Gems belong to the individual item, not to the item type.
- Saved with the item: gems last through logouts, and stay on the item in chests, on the
ground, and in your tombstone when you die. Equip the item again and its gem works again.
- Upgrading an enhanced item keeps its gem.
- Mistlands and earlier gear, and other stations, can't take gems (by default).
- Nothing changes for players who never enhance anything.
Configuration
The config file is created the first time you start the game with the mod installed:
BepInEx/config/com.jonasd.valheim.northerngemcraft.cfg
- Mod manager (r2modman, Thunderstore Mod Manager, Gale): open your profile's config editor
and pick com.jonasd.valheim.northerngemcraft.
- By hand: the
BepInExfolder is in your Valheim folder, or in your mod manager profile
folder. Open the file with any text editor.
- Dedicated server: edit the same file in the server's
BepInEx/configfolder.
The file is plain text: a [Section] heading, then one Name = value per line. Lines starting with # are explanations. Restart the game (or server) after editing it.
Costs (1 - Costs)
| Setting | Default | What it does | | --- | --- | --- | | MaxGrade | 3 | Highest grade (1 = no polishing) | | SetCoins, PolishToIICoins, PolishToIIICoins, RemoveCoins | 20, 60, 150, 30 | Ancient Coins per step | | SetGems, PolishToIIGems, PolishToIIIGems | 1, 1, 2 | Gems per step | | RemoveReturnsGem | false | true = removing gives one gem back |
Gem effects (2 - Gem effects)
Each gem has a list for armor and one for weapons, as Effect:value-per-grade, comma separated. The first entry is the main benefit. Change the numbers, swap effects between gems, or give a gem completely different effects.
Highlights
From source dataLoaders
Runs on BepInEx.
Footprint
Rated a light load on a server.
Last update
Its author last shipped an update 7d ago.
NorthernGemcraft on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Valheim servers, for BepInEx servers. We download it from Thunderstore, place it, and restart the server.
- Server side
- Optional on the server
- Server type needed
- BepInEx
- Server load
- light
- Smallest plan we suggest
- Valheim — 4 GB (4 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 0.1.2, released 2026-10-28
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| BepInEx |
From 3 recorded builds of NorthernGemcraft.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 0.1.2 | 2026-10-28 | n/a | BepInEx |
| 0.1.1 | 2026-10-28 | n/a | BepInEx |
| 0.1.0 | 2026-10-28 | n/a | BepInEx |
Dependencies
- Required: BepInExPack Valheim
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run NorthernGemcraft on a Valheim server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogWeapons, items & crafting
New weapons, gear, items and the recipes to make them.
Works on a server
From source side supportThunderstore lists server-side support for NorthernGemcraft as optional: it can run on a server, but isn’t required there.
Compatibility
- Game
- Valheim
- Loaders
- BepInEx
- Runs on
- Serveroptional on the server
- Requires
- One-click install needs a BepInEx server.
Verified at the source
- ✓ThunderstoreOfficial listing, checked 2026-10-29Open ↗
- ✓AuthorValheimQoL, as published on Thunderstore
- ✓LicenseNot published by the sourceFree






