About BossAffixByPlayers
From ThunderstoreBoss fights can require a minimum number of players within range before the boss takes damage, with a HUD message when blocked. Optional CL&LC affix swap by player count (off by default).
Boss Affix By Players
Control when bosses can be summoned and optionally adjust their Creature Level and Loot Control (CL&LC) affixes based on the number of nearby players.
Thunderstore Package: BossAffixByPlayers Assembly: Cjayride.BossGroupAffix
Features
Boss Summon Requirements
By default, bosses cannot be summoned until enough living players are within range of the boss's spawn point.
- Minimum Players: 2 living players by default.
- Player Range: 180 meters from the boss spawn point.
- Offering Protection: Summoning items are not consumed when the requirements are not met.
- HUD Notification: Displays a center-screen message when a summon is blocked.
- Configurable Messages: Customize the notification text and cooldown.
Set MinPlayersToStartFight = 0 to disable the summon requirement.
Optional Solo/Group Affix Switching
The mod can optionally change a boss's CL&LC affix based on the number of nearby players.
When enabled with SwapAffixByPlayerCount = true:
- Applies the configured solo or group affix based on nearby player count.
- Updates the affix while the boss is at full health.
- Locks the affix when the boss first takes damage.
Disabled by default. When SwapAffixByPlayerCount = false, this mod does not modify boss affixes.
Configuration
Config file:
BepInEx/config/cjayride.bossgroupaffix.cfg
| Setting | Default | Description | |---|---|---| | Enabled | true | Enables or disables the mod. | | MinPlayersToStartFight | 2 | Minimum living players required within range to summon a boss. Set to 0 to disable the requirement. | | PlayerRange | 180 | Distance in meters used to check nearby players. | | FightBlockedMessage | See config file | HUD notification shown when a summon is blocked. Supports {0} for the required player count, {1} for the range, and {2} for the current player count. | | MessageCooldownSeconds | 3 | Minimum time between repeated notifications. | | SwapAffixByPlayerCount | false | Enables optional solo/group CL&LC affix switching. |
Affix Configuration
These settings apply only when SwapAffixByPlayerCount = true:
SoloAffix— Affix used when fighting solo.GroupAffix— Affix used when fighting with a group.
Installation
Install Boss Affix By Players on the server and all clients.
Compatibility
- Verified against Valheim 1.0.21. BepInEx dependency:
denikson-BepInExPack_Valheim-5.4.2360.
Highlights
From source dataLoaders
Runs on BepInEx.
Footprint
Rated a light load on a server.
Last update
Its author last shipped an update 6d ago.
BossAffixByPlayers 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
- 1.0.5, released 2026-10-29
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| BepInEx |
From 2 recorded builds of BossAffixByPlayers.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.0.5 | 2026-10-29 | n/a | BepInEx |
| 1.0.4 | 2026-10-11 | 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 BossAffixByPlayers 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 catalogCreatures & NPCs
Adds or changes creatures, NPCs and how they behave.
Compatibility
- Game
- Valheim
- Loaders
- BepInEx
- Requires
- One-click install needs a BepInEx server.
Verified at the source
- ✓ThunderstoreOfficial listing, checked 2026-10-29Open ↗
- ✓Authorcjayride, as published on Thunderstore
- ✓LicenseNot published by the sourceFree
