Required
Open project Sable
Matched file: 2.0.6+mc1.21.1
Ready to install?
Create Cosmonautics 26.08.307
Check the game version, loader and dependencies below, then grab this exact release.
Modrinth release
cosmonautics-26.08.307.jar
26.08.307
- Game
- 1.21.1
- Loader
- NeoForge
- Published
- 9 Aug 2026
- Channel
- beta
- File size
- 22 MB
SHA-19b70ebf3ff2beaee0ab0ba6c8f46643da3e4f4fc
Where this file goes
Client, server, or both?
Client Optional
Dedicated server Optional
The source marks this as usable on both the client and server.
Dependencies for this release
What else does it need?
Required
Open project Create
Matched file: 6.0.10+mc1.21.1
Required
Open project Create Aeronautics
Matched file: 1.3.2+mc1.21.1
1 optional, embedded or incompatible relationship
- ImGuiMC optional