Forged by the Ancients

Author: Morda

A Valheim building mod that adds a rune energy network: windmills convert wind into rune energy, a runestone stores it, and rune furnaces smelt ore without coal.

Features

Rune Stone

• Stores rune energy for nearby buildings
• Hover text shows charge, connected windmills/ovens, and generation rate
• Unlocked after defeating Eikthyr

Rune Windmill

• Converts wind into rune energy
• Output scales with wind strength (light / medium / strong / storm)
• Connects to the nearest runestone in range

Rune Smeltery (Runenschmelze)

• Same ore conversions as the vanilla smelter
• Powered by rune energy instead of coal
• Blue fire visual
• Faster smelting (configurable)

Rune Blast Furnace (Runen Hochofen)

• Same ore conversions as the vanilla blast furnace
• Same rune-energy rules as the rune smeltery
• Build cost uses silver instead of iron

Rune Stone Oven (Runen Steinofen)

• Same food recipes as the vanilla stone oven (piece_oven)
• Powered by rune energy instead of coal
• Blue coal / fire VFX
• Energy drain while actively cooking (configurable)

How it works

1. Place a Rune Stone
2. Place Rune Windmills within range to charge it
3. Place a Rune Smeltery, Rune Blast Furnace, or Rune Stone Oven within range
4. Add ore / food as usual — no coal required

Default connection range is 100 meters (horizontal). Values are configurable.

Multiplayer

• Required on all clients and the dedicated server
• Energy is synced via ZDOs / RPCs
• Server config is synced to clients (Jötunn admin-only settings)
• Unlock uses the world global key for Eikthyr (defeated_gdking)

Installation

Mod manager (recommended)

Install with r2modman / Thunderstore Mod Manager. Dependencies are installed automatically.

Manual

1. Install BepInExPack Valheim
2. Install Jötunn
3. Copy ForgedByAncientsv2.dll into BepInEx/plugins/

Configuration

Config file: BepInEx/config/com.forgedbyancients.core.cfg

Section	Setting	Default	Description
Windmill	Energy per wind tier	2 / 4 / 6 / 8	Energy generated per second
Smelter	Energy per ore	20	Cost when smelting finishes
Stone oven	Energy per cooked food	20	Cost when cooking finishes
Smelter	Max ore	50	Queue capacity
Smelter	Smelt speed	3.0	Speed multiplier
Runestone	Max energy	5000	Storage capacity
Network	Ranges	100 m	Windmill / oven / stone link radius

On a dedicated server, these values are synced to connecting clients.

Build costs

Piece	Materials
Rune Stone	Stone 20, Greydwarf Eye 10, Ancient Core 5
Rune Windmill	Wood 30, Bronze 10, Ancient Core 5
Rune Smeltery (Runenschmelze)	Stone 20, Copper 10, Ancient Core 5, Tin 5
Rune Blast Furnace (Runen Hochofen)	Stone 20, Silver 10, Ancient Core 5, Copper 5
Rune Stone Oven (Runen Steinofen)	Stone 20, Iron 5, Ancient Core 3, Copper 5

Ancient Core (forge): 1 Surtling Core + 5 Crystal → 1, or 5 Surtling Core + 10 Crystal → 5.

Compatibility

• Requires Jötunn
• Network compatibility: everyone must have the mod (minor version match)
• Does not replace vanilla smelter / blast furnace — adds separate rune pieces

Changelog

1.0.0

• All Valheim languages added (names, descriptions, hover texts and messages follow the game language)

Credits

Author: Morda

Created with Jötunn.