ArcanumEitr

Keep your base safe from damaging Eitr projectiles. Independently disable emissions from Eitr refineries and dropped refined Eitr. Both are disabled by default.

Refinery recipes, processing speed, capacity, and unrelated projectiles remain unchanged.

Credit to the original creator

Inspired by No Eitr Projectiles by joryjuky_team.

The original mod established this focused feature and the Radiator.OnEnable patch approach. ArcanumEitr is a separately written replacement with safer object detection, independent settings, and optional diagnostics. Thank you to joryjuky_team for the original idea and implementation. This is an independent project, not an official update or endorsed release of the original mod.

Installation

Disable or uninstall No Eitr Projectiles first. ArcanumEitr declares it incompatible to prevent both plugins loading together.

Install through Gale, r2modman, or Thunderstore Mod Manager. The BepInEx dependency is listed in the package.

For manual installation, install BepInEx for Valheim, then copy this package's BepInEx folder into your Valheim directory. The DLL belongs in BepInEx/plugins/ArcanumEitr/.

For multiplayer, install on all participating clients and the dedicated server with matching settings. Server-only installation is not sufficient: the peer owning the object runs its projectile behavior. Configuration is local and is not automatically synchronized or enforced.

Configuration

Launch once to generate BepInEx/config/arcanum.eitr.cfg:

[Projectiles]
DisableDroppedEitrProjectiles = true
DisableRefineryProjectiles = true

[Diagnostics]
LogDetection = false

Set either projectile option to false to restore vanilla behavior for that source. Restart the game/server after changing settings. Live toggling and plugin unloading are not supported.

Enable LogDetection to log each distinct detected hierarchy and decision once per session. Look for ArcanumEitr 1.0.0 active in BepInEx/LogOutput.log to confirm loading.

Compatibility

Built against Valheim 1.0.16. In-game testing was reported successful for this release. This does not claim verification of every multiplayer ownership scenario or other mod combination.

Detection checks exact object names and item/refinery components while walking the object's parents, stopping at the nearest network object. Unrecognized emitters retain vanilla behavior. Mods that rename or restructure Eitr prefabs may require additional support.

When reporting a problem, include your Valheim version, mod list, configuration, and BepInEx log with LogDetection enabled.