CurseForge · Minecraft mod
Formations (Structure Library)
Formations adds utilities for structure datapacks!
Quick answer
Which Formations (Structure Library) release matches 1.21.9 NeoForge?
Formations (Structure Library) Formations 1.0.4 for NeoForge 1.21.9 targets 1.21.9, 1.21.10 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is Formations (Structure Library) required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Formations (Structure Library) Formations 1.0.4 for NeoForge 1.21.9 need?
Formations 1.0.4 for NeoForge 1.21.9 on 1.21.9 NeoForge. Every mod below is checked against that same setup.
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 Formations (Structure Library) without breaking your instance.
Built for Formations (Structure Library) Formations 1.0.4 for NeoForge 1.21.9 on 1.21.9 NeoForge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Formations 1.0.4 for NeoForge 1.21.9. It targets 1.21.9, 1.21.10 with NeoForge; 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
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside Formations 1.0.4 for NeoForge 1.21.9. It opens that exact file at the source.
About this project
What does Formations (Structure Library) add?

Formations is a library mod which adds additional features to datapacks for generating structures!

FAQ
Can I use your mod in my modpack?
Yes, feel free to use my mod in your modpack

Discord
For future content, upcoming mods, and discussion, feel free to join the SuperMartijn642 discord server!

Project description from CurseForge.
Pick your setup
Formations (Structure Library) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
4 loader builds26.1.1
4 loader builds26.1
4 loader builds1.21.11
4 loader builds1.21.10
4 loader builds1.21.9
4 loader builds1.21.8
4 loader builds1.21.7
4 loader builds1.21.6
4 loader builds1.21.5
4 loader builds1.21.4
4 loader buildsShowing the newest 12 of 25 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
Formations (Structure Library) versions and loaders
Formations 1.0.4 for NeoForge 1.21.9
formations-1.0.4-neoforge-mc1.21.9.jar
2 Oct 2025
Looking for an older file? The official CurseForge project page is in Resources.
