
Modrinth · Minecraft mod
Large Structure Lib
Library for large structures, including enormous jigsaw structures.
Quick answer
Which Large Structure Lib release should I use?
Large Structure Lib 1.1.1 targets 1.21.1 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. All 2 required mods have matching files.
Where it goes
Is Large Structure Lib required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Large Structure Lib 1.1.1 need?
1.1.1. Change the file and its required mods may change too.
Install Structure Layout Optimizer, Resourceful Config first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Large Structure Lib without breaking your instance.
Built for Large Structure Lib 1.1.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.1.1. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Structure Layout Optimizer, Resourceful Config first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.1.1. It opens that exact file at the source.
About this project
What does Large Structure Lib add?
Library of Large structures & structure sets, including:
- Large Jigsaw Structures
- Density Based Structures
- Multi Structures
- Grid Structure Sets
Dependencies
This project utliizes Structure Layout Optimizer and its dependency for improved structure-gen performance.
Copyright
I personally don't care for copyright so long as you credit me. You may fork & add to this project as you so like so long as you credit me. You may also distribute said versions commercially so long as there's no paywall behind your mod. You may utilize my mod as a dependency as you so like. However, you may not commercially distribute this mod as is, without use as an api, unless I give my blessing. Basically don't steal my mod for commercial use unless it's used for something else. This does not include using it in a modpack.
Project description from Modrinth.
Pick your setup
Large Structure Lib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Large Structure Lib versions and loaders
1.1.1
largestructlib-1.1.1.jar
24 Oct 2026
1.0.3
largestructlib-1.0.3.jar
22 Oct 2026
1.0.2
largestructlib-1.0.2.jar
27 Sept 2026
1.0.1
largestructlib-1.0.1.jar
17 Jul 2026
1.0.0
largestructlib-1.0.0.jar
15 Jul 2026
Looking for an older file? The official Modrinth project page is in Resources.