CurseForge · Minecraft mod
Titanium
A shared library mod for Innovative Online Industries's mods
Quick answer
Which Titanium release should I use?
titanium-1.21-4.0.43.jar targets 1.21, 1.21.1 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 Titanium 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 titanium-1.21-4.0.43.jar need?
titanium-1.21-4.0.43.jar. Change the file and its required mods may change too.
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 Titanium without breaking your instance.
Built for titanium-1.21-4.0.43.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use titanium-1.21-4.0.43.jar. It targets 1.21, 1.21.1 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 titanium-1.21-4.0.43.jar. It opens that exact file at the source.
About this project
What does Titanium add?

Titanium is a library mod which adds shared common code that all "Innovative Online Industries"mods use, this mod provides nothing of value without another mod activating it or using it.
Project description from CurseForge.
Pick your setup
Titanium by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.21
1 loader build1.20.1
1 loader build1.19.2
1 loader build1.19.1
1 loader build1.18.2
1 loader build1.16.5
1 loader build1.16.4
1 loader build1.16.3
1 loader build1.14.4
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Titanium versions and loaders
titanium-26.1.2-4.0.2.jar
1 Aug 2026
titanium-26.1.2-4.0.1.jar
1 Aug 2026
titanium-1.20.1-3.8.35.jar
13 Jul 2026
titanium-1.21-4.0.45.jar
13 Jul 2026
titanium-1.21-4.0.43.jar
19 Apr 2026
titanium-1.20.1-3.8.34.jar
19 Apr 2026
titanium-1.21-4.0.42.jar
22 Feb 2026
titanium-1.21-4.0.40.jar
11 Aug 2025
titanium-1.21-4.0.39.jar
5 Aug 2025
titanium-1.21-4.0.37.jar
20 Apr 2025
titanium-1.21-4.0.36.jar
23 Mar 2025
titanium-1.21-4.0.35.jar
15 Mar 2025
Looking for an older file? The official CurseForge project page is in Resources.