About ValheimFortress
From ThunderstoreFeel like your massive fortress needs some practial use against hordes of enemies? Ever wanted to run an automated arena and be rewarded for defeating waves of enemies?
ValheimFortress
What is Valheim Fortress
When the Valheim Devs released the blog "Fearsome Foes!" they talked about a concept called "Fortress Time!". They did not go into details about what this idea was, but I was very excited! However, what that ended up being, while exciting was not what I was expecting.
I wanted a system that would encourage building a massive fortress, defending it, and reaping rewards for doing so! The core system this mod presents is wave defense in a few different forms. In addition some new special defensive pieces are added to help you along the way.
Got a bug to report or just want to chat about the mod? Drop by the discord or github.

Table of Contents
<!-- TOC start (generated with https://github.com/derlin/bitdowntoc) -->
- Features
- The shrine of challenge
- Shrine of the Arena
- Wild Shrines
- Defensive Structures
- How to adjust the difficulty
- Configuration
- Adding Rewards
- Adding Monsters
- Add/Editing Levels
- Adding/Editing WaveStyles
- Adding/Editing Wildshrine configuration
- Creature rules (stars and SLS modifiers)
- FAQ
- Localizations - Translations
- Future Features / Incomplete things
- Other Mods
- Credits
- Known issues
<!-- TOC end -->
Features
The shrine of challenge
- Weapons shown are from Valheim Armory
The Shrine of Challenge is a buildable piece that allows you to call waves of enemies to attack you. It is highly configurable, and enemies will spawn outside of your build radius.
The goal with the shrine of challenge is to provide a variable but high level of difficulty raid, which the player(s) can invoke in exchange for a promised reward.
The shrine will gradually unlock more levels and rewards as the server defeats the various bosses. The shrine of challenge supports custom waves and rewards.
Shrine of the Arena
- Weapons shown are from Valheim Armory
The Shrine of the Arena is somewhat the inverse of the shrine of challenge. Instead of enemies attacking from random remote locations the enemies all spawn on the shrine platform itself.
This shrine is designed to facilitate Arena fights, build yourself an Arena demonstrate your skills!
Again, this shrine is highly configurable and can use the same levels or seperate levels from the shrine of challenge. Build your own custom waves, select your favorite rewards and fight to the death!
Wild Shrines
- Weapons shown are from Valheim Armory
Wild shrines come in a number of different flavors, one type per biome. Each wild shrine will ask for different tribute, from their respective biome.
Upon providing the shrine with the required tribute it will spawn an easy wave of similar creatures, which will then reward you with resources from that biome upon completion. This is all configurable!
Help! What is the tribute for the wildshrine?!
Wildshrine Tribute Spoiler
The default tribute for wildshrines will be biome specific trophies. For example, the meadows wildshrine will accept boar trophies, deer trophies and neck trophies.
- The blackforest shrine accepts trophies from the black forest.
- The swamp shrine accepts trophies from the swamp.
- The mountain shrine accepts trophies from the mountain.
- The plains shrine accepts trophies from the plains.
- The mistland shrine accepts trophies from the mistlands.
Defensive Structures
This mod also adds a few defensive structures to help you with dealing with massive invasions.
Defensive Structures
|Name|Icon| |--|--| |Stone Stakes|
| |Automated Ballista|
|
How to adjust the difficulty
The Shrine of challenge provides a number of key configuration values which can be used to adjust the difficulty level in many different ways.
Highlights
From source dataLoaders
Runs on BepInEx.
Footprint
Rated a light load on a server.
Last update
Its author last shipped an update 2d ago.
ValheimFortress 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 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
- 0.39.0, released 2026-10-13
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| BepInEx |
From 27 recorded builds of ValheimFortress.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 0.39.0 | 2026-10-13 | n/a | BepInEx |
| 0.38.0 | 2026-10-10 | n/a | BepInEx |
| 0.37.2 | 2026-09-18 | n/a | BepInEx |
| 0.37.1 | 2026-09-10 | n/a | BepInEx |
| 0.37.0 | 2026-09-09 | n/a | BepInEx |
| 0.36.2 | 2026-08-09 | n/a | BepInEx |
Dependencies
- Required: YamlDotNet
- Required: Jotunn
- Required: BepInExPack Valheim
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run ValheimFortress 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 catalogBuilding & decoration
Blocks, furniture, decorations and building tools.
Compatibility
- Game
- Valheim
- Loaders
- BepInEx
- Requires
- One-click install needs a BepInEx server.
Verified at the source
- ✓ThunderstoreOfficial listing, checked 2026-10-14Open ↗
- ✓AuthorMidnightMods, as published on Thunderstore
- ✓LicenseNot published by the sourceFree





