Source-checkedQuality of life & UI

UndisturbedBossFights

by aetuss · for Valheim

No raids or new creature spawns interrupt a boss fight. Raids are delayed, not cancelled. The fight itself is unchanged.

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todayLast updated
BepInExLoaders
ThunderstoreSource

About UndisturbedBossFights

From Thunderstore

No raids or new creature spawns interrupt a boss fight. Raids are delayed, not cancelled. The fight itself is unchanged.

UndisturbedBossFights

No raids or new creature spawns interrupt a boss fight.

What changes?

Getting raided in the middle of a boss fight, or having a troll wander in while you dodge Bonemass, isn't a fair challenge, just bad luck. While a boss fight is going on, this mod:

  • Delays raids. No raid ("The ground is shaking", "You are being hunted", ...) can start. A raid that was due waits until the fight is over, then the game rolls for it as usual. Raids are delayed, not cancelled, so you get as many as in vanilla.
  • Stops new spawns near the fight. No new creatures spawn naturally near the boss or the players fighting it.

The fight itself stays exactly as hard as in vanilla: the boss's own summons and attacks are untouched, creatures that were already there stay, and a raid that was already running when the fight began keeps going.

A boss fight starts when a boss is alerted or has a target and a player is within 60 m of it. It ends 20 seconds after that stops being true (the boss died, or everyone left).

Raids started from the console (randomevent, event) are not held back.

Configuration

Change these in game with F1 (Configuration Manager) or in your mod manager's config editor:

  • DelayRaids: hold back raids during boss fights (default on).
  • BlockSpawnsNearFight: stop new natural spawns near boss fights (default on).
  • SpawnBlockRadius: how close (in meters) to the boss or a player fighting it a creature may not spawn (default 80). The game spawns creatures 40-80 m from a player, so 80 blocks almost all of them.
  • FightDistance: how close (in meters) a player must be to an alerted boss for it to count as a fight (default 60).
  • DebugLog: writes boss fights, held raids and blocked spawns to the BepInEx log.

Console commands

  • ubf_status: shows the boss fights the mod sees and when the next raid roll is due.
  • ubf_raidsoon (needs devcommands): makes the next raid roll due in 10 seconds, to see it wait during a fight.

Multiplayer

Note: Multiplayer and dedicated servers haven't been tested yet. It's built to work there, but if something seems off, please report it on GitHub Issues.

Install it on the server and on every player's game. Raids are decided by the server, and spawns by the player who owns that area, so both need the mod. The server's settings are used for everyone (except DebugLog). The server warns when a player joins without the mod or with a different version.

Raids are held back for the whole world while any boss fight is going on, even for players far from it. They only wait for the fight to end; none are lost.

Feedback and bug reports

Found a bug or have an idea? Open an issue on GitHub. If an enemy or raid does something odd, turn on DebugLog and include the matching lines from BepInEx/LogOutput.log.

Highlights

From source data

Loaders

Runs on BepInEx.

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update today.

UndisturbedBossFights 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
1.0.2, released 2026-11-03

Game versions by loader

LoaderGame versionsNewest
BepInEx

From 3 recorded builds of UndisturbedBossFights.

Recent builds

BuildReleasedGame versionsLoaders
1.0.22026-11-03n/aBepInEx
1.0.12026-11-02n/aBepInEx
1.0.02026-11-02n/aBepInEx

Dependencies

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

Run UndisturbedBossFights 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 “Tweaks”

Quality of life & UI

Small conveniences, tweaks and interface improvements players notice straight away.

Works on a server

From source side support

Thunderstore lists server-side support for UndisturbedBossFights 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 2026-11-03Open ↗
  • ✓Authoraetuss, as published on Thunderstore
  • ✓LicenseNot published by the sourceFree

UndisturbedBossFights, answered

Generated from the mod’s own source data.

Do my players need to install UndisturbedBossFights?

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

Which loaders does it support?

BepInEx.

Is it free?

Yes. UndisturbedBossFights 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 UndisturbedBossFights on a Valheim server.

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