Quick answer
Which Modular Backpacks release should I use?
Updated 11 days ago Latest stable file 1.6.1
Game version 1.22.0-pre.1, 1.22.0-pre.2, 1.22.0-pre.3
Loader Built-in Vintage Story mod system
Modular Backpacks 1.6.1 targets 1.22.0-pre.1, 1.22.0-pre.2, 1.22.0-pre.3. It must be installed on the client. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Modular Backpacks required on the client, server, or both?
It must be installed on the client. Installation on the dedicated server is optional.
Client Required
Dedicated server Optional
Loader for this release Built-in Vintage Story mod system
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
This release supports both sides, but the source does not require it on the server.
What else does Modular Backpacks 1.6.1 need?
1.6.1. Change the file and its required mods may change too.
No extra mods listed for this file This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Modular Backpacks without breaking your instance.
Built for Modular Backpacks 1.6.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.6.1. It targets 1.22.0-pre.1, 1.22.0-pre.2, 1.22.0-pre.3; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
It must be installed on the client. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.6.1. It opens that exact file at the source.
About this project
What does Modular Backpacks add?
Attach it · Wear it · Show it off
Immersive Modular Backpacks
A backpack shouldn't be an invisible inventory slot you forget you're wearing.
Bolt on pouches, sacks, a toolstrap, or a lantern - extend your storage, light your way, or just show off your tools.
✔ Multiplayer synced 🔦 Working lantern light
Worn, not hidden. Attach something and you actually see it - on your character, in your hands, right there in the world. No hunting through the menu.
Build it your way. Slot on pouches, sacks, and straps; each one gives you more room to haul. Mix and match until the pack fits how you play.
More than decoration. Addons aren't just for show - a lantern lights your way, a toolstrap carries your tools.
Set it down. Place your pack as a block and it works like a chest - Ctrl + right-click to open it, right-click to pick the whole thing back up, addons and all.
Two packs to build on
Standard Backpack
7 attachment points
4 × Pouch
2 × Toolstrap
1 × Lantern or Shield
Sturdy Backpack
10 attachment points
6 × Pouch (2 also take a Sack)
3 × Toolstrap
1 × Lantern or Shield
Addons to bolt on
Pouch
+3 slots
A small bag in its own right - wear it in a bag slot, or fit it to a backpack point to add its slots to the pack.
Sturdy Pouch
+5 slots
A roomier pouch that fits the sturdy backpack's larger attachment points.
Tool Strap
Carries 1 tool
Holds a single tool. Fitted to a pack, the tool rides visibly on your back instead of vanishing into a slot.
Compatible with
✔Storage Tweaks — sort and stack work on a backpack, placed or worn. Tools stay on their toolstrap.
✔Roll-up bed — its mattresses strap to a sturdy backpack, just like the hay bed.
Credits
For modders
The attachment code here isn't tied to backpacks. I'm moving it into its own mod so other mods can build on it, and growing it into a full replacement for vanilla's attachment system.
Feedback and bug reports very welcome.
Project description from Vintage Story Mod DB.
Pick your setup
Modular Backpacks releases for each Vintage Story version.
Choose the version and loader you play, then open the matching release.
20 available setups Vintage Story version
1.22.4
1
loader build Vintage Story version
1.22.3
1
loader build Vintage Story version
1.22.2
1
loader build Vintage Story version
1.22.1
1
loader build Vintage Story version
1.22.0-rc.10
1
loader build Vintage Story version
1.22.0-rc.9
1
loader build Vintage Story version
1.22.0-rc.8
1
loader build Vintage Story version
1.22.0-rc.7
1
loader build Vintage Story version
1.22.0-rc.6
1
loader build Vintage Story version
1.22.0-rc.5
1
loader build Vintage Story version
1.22.0-rc.4
1
loader build Vintage Story version
1.22.0-rc.3
1
loader build Showing the newest 12 of 20 game versions.
Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Modular Backpacks versions and loaders
11 of 11 releases match immersivemodularbackpacks_1.6.1.zip
21 Jul 2026
Client Required Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.22.4 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.6.0.zip
21 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.4 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.5.1.zip
21 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.4 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.5.0.zip
20 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.3.2.zip
16 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.3.1.zip
16 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.3.0.zip
15 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.2.3.zip
14 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.1.1.zip
14 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.0.2.zip
12 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release
immersivemodularbackpacks_1.0.0.zip
10 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.22.3 setup → 1.22.0-pre.11.22.0-pre.21.22.0-pre.31.22.0-pre.4 release