OctoPack — More than just a backpack mod

Carry your supplies, display your travelling gear, and upgrade your backpack as you conquer Valheim's bosses. OctoPack adds dedicated backpack equipment and storage, with persistent cargo that stays inside when you remove or drop your pack.

Full loadout shown with the separate Lantern and Camping add-ons installed.

Download

Download OctoPack on Thunderstore.

Thunderstore 1.7.3 retains the gameplay and assets from 1.7.2, with updated version and AI disclosure metadata.

Features

• Eight progression tiers: Start with the Traveller backpack and unlock seven sequential boss upgrades.
• Expanded storage: Progress from 4 to 24 backpack slots, with increasing carry bonuses.
• Dedicated equipment slot: Equip your backpack separately from ordinary armor.
• Persistent cargo: Items retain their positions inside an unequipped or dropped backpack. Picking it up equips it directly.
• Dropped-pack physics: Backpacks fall from their worn position and settle naturally.
• Armor-stand support: Hang your backpack on a stand while preserving its contents.
• Visible equipment: Display stowed weapons, shields, and boss keepsakes.
• Grave recovery: Recover your backpack and equipped accessories after death.
• Movable inventory: Alt-drag the backpack panel and equipment slot independently. The panel follows inventory growth until you move it.

Boss keepsakes

Your personal boss victories become keepsakes displayed on your backpack. Seven keepsakes record your progression through Eikthyr, the Elder, Bonemass, Moder, Yagluth, the Queen, and Fader.

Bind your crypt key

Hold Alt and left-click a Swamp Key in your inventory to bind permanent Sunken Crypt access to your character. Binding consumes one key and adds a hanging key memento to your pack. Hiding the cosmetic key does not remove your access.

Optional Camping Kit

The separate Camping add-on fits a cooking pot and ladle to your backpack. Set up camp to cook, repair, and sleep, with the pot, bail, and ladle moving independently while carried.

Camping is a separate installation and is not included in the OctoPack core download.

Build your travelling kit

Expand your setup with separate companion mods:

• Camping Kit: Carry a pot and ladle, then make camp.
• Lantern: Seven lanterns, an integrated lantern arm, aura abilities, and Wisp mist clearing.
• OctoArsenal: Norse weapons and shields with dedicated arrow and spear storage.

The companion mods pictured above are optional, separate downloads.

Getting started

Craft the Traveller backpack at a level 1 workbench with 10 Deer Hide, 10 Leather Scraps, 4 Bone Fragments, and 2 Resin. Equip it in the pack slot. Later upgrades use the preceding pack and their boss progression requirements.

Default controls

The backpack inventory continues to follow changes in player inventory height until you actually drag it. The panel and equipment slot can be moved independently.

Configuration

The configuration file is generated at:

BepInEx/config/OctoPack.cfg

Settings cover inventory behavior, equipment displays, mount positions, backpack motion, cape visibility, and controls. Existing configuration is preserved when updating.

Requirements and installation

Requires BepInEx for Valheim. Install with your Thunderstore-compatible mod manager.

For manual installation, close Valheim and copy the package's plugins folder into your existing BepInEx folder. The resulting file is:

BepInEx/plugins/OctoPack/OctoPack.dll

Keep one copy of the DLL and retain your configuration when updating.

Multiplayer and dedicated servers

Install the same OctoPack version on participating clients and the dedicated server. The server uses the identical DLL; there is no separate server DLL.

For the current paired release, use OctoPack 1.7.3 with Lantern 1.2.3. A dedicated server needs the core DLL; it does not need Lantern or Camping for their client visuals.

Compatibility

Equipment and Quick Slots, Path of Valheiman, and OctoArsenal integrations are optional; they are not required downloads. Compatibility depends on the versions and settings of the other installed mods.

Remove the legacy Octodad.Backpack plugin before using this core. Avoid duplicate copies of OctoPack.

Lantern and Camping are separate optional add-ons. Neither add-on DLL is bundled in the OctoPack core package.

Development disclosure

Created and maintained with generative AI assistance from OpenAI Codex (OpenAI), including code, documentation, and asset-production assistance. The mods have been built and tested during development.

Community and support

Join OctoDad's Mods on Discord to ask questions, report bugs, and get news about future mods.

Credits

Created by OctoDad / Bascinet.

Changelog

1.7.3

• Added the BepInEx dependency and GitHub website link to Thunderstore metadata.
• Added five original loadout and equipment photos using public image links.
• Corrected installation wording for Thunderstore.
• Added OpenAI Codex assistance disclosure to the README, project metadata, and compiled assembly metadata.
• Retained existing gameplay, models, textures, sounds, recipes, and configuration defaults.

1.7.2

• Added fitted, saved ground contacts for dropped-pack lantern arms and lantern housings.
• Kept dropped arm and lantern visuals in the same packed pose as their collision geometry.
• Shared saved contact profiles with other clients and headless servers.
• Added one-time contact metadata repair for older dropped packs.
• Retained existing cargo, artwork, sound, worn motion, and armor-stand behavior.

1.7.1

• Dropped packs fall from their worn position and settle using body and rounded-bedroll collision.
• Added portable-pack display for equipped quivers, arrows, and the optional Camping travel kit.
• Enabled core portable-pack physics on dedicated servers using the same DLL.

1.7.0

• Added persistent backpack cargo and saved item positions when removing or dropping packs.
• Added Shift+R dropping and direct re-equipping when a dropped pack is picked up.
• Retained selected lantern and arm attachments with portable packs.
• Added armor-stand backpack display and cargo preservation.
• Prevented filled backpacks from entering ordinary inventory cells or other backpacks.

1.6.50

• Added optional Path of Valheiman integration for inventory rows, gear placement, and grave previews.

1.6.49

• Reduced repeated inventory and grave recovery work around death and respawn.

1.6.48

• Improved equipped accessory recovery from graves.
• Added Alt-drag positioning for the backpack panel and pack slot while retaining automatic panel following until moved.