Ready to install?

The Undefined (version 3)the_undefined-1.0.0-neoforge-1.21.8.jar

Check the game version, loader and dependencies below, then grab this exact release.

CurseForge release

(version 3)the_undefined-1.0.0-neoforge-1.21.8.jar

Game
1.21.8
Loader
NeoForge
Published
27 Oct 2026
Channel
release
File size
2.2 MB

SHA-1ac3dd4b615603f8ffeec39545fcaf3aabb3a20b0

Where this file goes

Client, server, or both?

Client Source doesn’t say
Dedicated server Source doesn’t say

The source does not explicitly classify this release as client-only or server-only.

Dependencies for this release

What else does it need?

No required project dependencies are listed for this release.