Source-checkedGameplay & overhauls

ForestGammeltroll

by Voxx · for Valheim

A rare, moss-covered Gammeltroll now roams the Black Forest. It replaces some open-world Troll spawns and turns to stone on death, leaving rock you can mine for copper.

275Downloads
22d agoLast updated
BepInExLoaders
ThunderstoreSource

About ForestGammeltroll

From Thunderstore

A rare, moss-covered Gammeltroll now roams the Black Forest. It replaces some open-world Troll spawns and turns to stone on death, leaving rock you can mine for copper.

Forest Gammeltroll

Something old has taken root in the Black Forest.

Forest Gammeltroll adds a rare, moss-covered cousin of the Deep North's Gammeltroll to the Black Forest. Instead of snow and frost, it carries the forest on its back: mossy stone skin, a hanging beard of lichen, and green firs growing from its shoulders. When it falls, it turns to stone, and the petrified remains are laced with copper.

Features

  • A new Black Forest mini-boss. Whenever a regular Troll spawns in the open Black Forest, there's a chance (25% by default) it's a Forest Gammeltroll instead.
  • Only open-world spawns are affected. Troll caves and raids are left untouched.
  • In multiplayer, the roll happens once on the machine that owns the area, so you'll never get duplicates.
  • Tougher than a Troll, gentler than its northern kin. 1500 health and roughly 2–2.75× a Troll's damage. It keeps the Gammeltroll's huge reach, ground slams and throw attack, so keep your distance and your stamina.
  • A Black Forest look. Snow becomes moss, the frosty beard becomes lichen, and the snowy firs on its back become green. Every texture is generated in-game from Valheim's own art, so the download stays tiny.
  • Turns to stone on death. Like the Gammeltroll, it petrifies into a statue. Break it, then mine the rock for Stone and Copper Ore. Any pickaxe works, from the Antler Pickaxe up.
  • Stars without the paint job. Starred Forest Gammeltrolls keep their natural colours, including with Star Level System installed.
  • Fully configurable. Spawn chance, health, damage, size, AI ranges and copper yield can all be changed live with ConfigurationManager, with no restart needed.

Configuration

Settings live in BepInEx/config/com.voxxsidus.forestgammeltroll.cfg and can be edited in-game with ConfigurationManager. Gameplay settings are server-synced: on a dedicated server, the server's values apply to everyone. Edits to the config file also apply live, with no restart.

| Section | Setting | Default | Description | |---|---|---|---| | Spawning | SpawnChance | 25 | Percent chance an open-world Black Forest Troll becomes a Forest Gammeltroll | | Spawning | AllowStars | true | Whether it can spawn with stars, using the Troll's normal level-up chances | | Stats | Health | 1500 | Base health (Troll: 600, Gammeltroll: 3000) | | Stats | DamageMultiplier | 0.75 | Multiplier on the Gammeltroll's damage, applied to every hit | | Stats | ModelScale | 1.0 | Size relative to the Gammeltroll (1.0 ≈ 4× a Troll) | | AI | ViewRange | 50 | How far it can see you (Troll: 30, Gammeltroll: 300) | | AI | AlertRange | 30 | Radius in which it notices you | | AI | MaxChaseDistance | 200 | How far from home it will chase you | | Petrify | CopperOreWeight | 0.5 | Copper Ore vs Stone ratio when mining the remains (0.5 ≈ one third copper) | | Visual | MossTint | green | Colour of the moss (client-side) | | Visual | SnowToMossThreshold | 0.48 | How much of the old snow becomes moss; lower means more moss (client-side) |

How often will I see one?

At the default 25%, each new patch of Black Forest you explore has about a 1 in 84 chance of producing one. In practice that's roughly one per hour of exploring new forest, and much rarer while you stay in areas you've already explored. Raise or lower SpawnChance to taste.

Compatibility

  • Everyone must have the mod. Clients and server need it installed, with matching versions.
  • Star Level System: supported. Starred Forest Gammeltrolls keep their normal colours automatically.

Installation

Install with a mod manager (r2modman, Gale, Thunderstore Mod Manager), or manually:

  1. Install BepInExPack Valheim and Jötunn.
  2. Copy ForestGammeltroll.dll into BepInEx/plugins/ForestGammeltroll/.

For server admins

With devcommands enabled, fgt_testspawn [count] pushes regular Troll spawns through the open-world spawn path in front of you, so you can check spawn settings without waiting. Stand in the Black Forest when you use it.

Changelog

1.0.1

  • Config file changes now apply live without a restart, and sync to connected players on a server.

1.0.0

  • Initial release.

Highlights

From source data

Loaders

Runs on BepInEx.

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 22d ago.

ForestGammeltroll 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
1.0.1, released 2026-10-13

Game versions by loader

LoaderGame versionsNewest
BepInEx

From 2 recorded builds of ForestGammeltroll.

Recent builds

BuildReleasedGame versionsLoaders
1.0.12026-10-13n/aBepInEx
1.0.02026-10-12n/aBepInEx

Dependencies

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run ForestGammeltroll 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 catalog
Listed on Thunderstore as “Content”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Works on a server

From source side support

Thunderstore lists server-side support for ForestGammeltroll 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 2026-10-14Open ↗
  • ✓AuthorVoxx, as published on Thunderstore
  • ✓LicenseNot published by the sourceFree

ForestGammeltroll, answered

Generated from the mod’s own source data.

Do my players need to install ForestGammeltroll?

Thunderstore lists server-side support for ForestGammeltroll as optional: it can run on a server, but isn’t required there.

Which loaders does it support?

BepInEx.

Is it free?

Yes. ForestGammeltroll is free to download from Thunderstore.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run ForestGammeltroll on a Valheim server.

Deploy in about a minute from $9.99 a month, then add ForestGammeltroll in one click.