BackpacksValheim1Compat

Backpacks Valheim 1 Compatibility

This package lets the official Smoothbrain-Backpacks-1.3.8 package run on

Valheim 1.0.7 while its upstream release catches up with the game's changed

method signatures.

It does not redistribute Smoothbrain's DLL, models, assets, or source.

installs the official Backpacks package as a dependency. A small

BepInEx preloader patch then applies narrowly guarded compatibility repairs to

that installed copy before the game loads it.

Scope

• replaces the removed ZRoutedRpc.Everybody field reads with the same declared

constant value;

• redirects obsolete Inventory.AddItem targets and calls to the live Valheim

1.0 overloads;

• supplies neutral/default values for the new Inventory.IsTeleportable,

VisEquipment.AttachArmor, Character.Message, and EffectList.Create

parameters;

• safely yields to Valheim's normal pickup path when a multiplayer pickup object

or its ZNetView disappears before Backpacks can process it;

• refuses to patch anything except the exact official Backpacks 1.3.8 binary it

was built and tested against;

• keeps a recoverable copy of the original DLL beside the patched profile copy;
• makes no intentional change to backpack mechanics, assets, defaults, plugin

identity, or network protocol.

Installation

Install this package normally with r2modman or Mod Manager. Its

dependencies install BepInEx and the official Backpacks 1.3.8 package

automatically. Do not also import the earlier private full-binary compatibility

ZIP into the same profile.

Install the same package set on a dedicated server and every joining client.

Removal

Remove this compatibility package and reinstall the official Backpacks package

to restore a completely clean upstream DLL. The patch only touches the active

profile copy; it does not alter 's package cache.

Tested matrix

• Valheim 1.0.7
• BepInExPack Valheim 5.4.2350
• Smoothbrain Backpacks 1.3.8

Version 1.0.4 additionally hardens automatic backpack pickup against transient

or malformed network pickup objects observed during multiplayer Mistlands play.

This is an independent compatibility patch, not an upstream Smoothbrain release.