CurseForge · Minecraft mod
ultraFLIGHT
A space mod.
Quick answer
Which ultraFLIGHT release should I use?
ultraflight-0.3.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 11 required mods have matching files.
Where it goes
Is ultraFLIGHT required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does ultraflight-0.3.1.jar need?
ultraflight-0.3.1.jar. Change the file and its required mods may change too.
Install Biomes O' Plenty, Cloth Config API (Fabric/Forge/NeoForge), TerraBlender (NeoForge), Gravity Control and 7 more first. We found matching files for this game-version and loader setup. 8 come through another mod in the chain.
8 extra mods were pulled in by other dependencies. 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 ultraFLIGHT without breaking your instance.
Built for ultraflight-0.3.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ultraflight-0.3.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Biomes O' Plenty, Cloth Config API (Fabric/Forge/NeoForge), TerraBlender (NeoForge), Gravity Control and 7 more first. We found matching files for this game-version and loader setup. 8 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ultraflight-0.3.1.jar. It opens that exact file at the source.
About this project
What does ultraFLIGHT add?
please dedicate at least 6 GB of allocated memory
Discord: https://discord.gg/rRy6ssHP2a
Youtube: https://www.youtube.com/@ultraFLIGHT-mc
this mod was generated using an llm
When I was a kid and watching iBallisticsquid's Race to the Moon series. I found that the climatic "going" to the moon, very much underwhelming. A loading screen... and you made it? The biggest hurdle of getting to another planet should be navigation, not entirely construction. Alas, as a kid I was powerless. Watching other mods do the same thing growing up, I could only imagine what it would be like. Recently I came upon this idea independently, but then thought that it would have already been made by now. And I came to the conclusion of: kinda? But not in the way I had envisioned. I had played a lot of Kerbal Space Program, and wanted the KSP aspects but the minecraft worlds.
Is this worth it to make?
I had made mc mods in the past that were based on books/games just for myself. So there is no other answer except yes because yes for me.
Is this worth it... for others?
The reason you are seeing this at all is because i thought this was worth it to share.
What makes it good?
I think a few aspects of this make me feel a certain amount of joy, that I cant exactly explain and hope other people also have, that I can list out here:
The world is finite and thus: exploration is novel.
Space is discoverable and traversable and thus: exploration is exciting.
Seeing the whole world at once, even at ground level, makes the world feel real.
The ability to move around and see other people inside the rocket, makes it feel significant.
Project description from CurseForge.
Pick your setup
ultraFLIGHT 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
ultraFLIGHT versions and loaders
ultraflight-0.3.1.jar
7 Nov 2026
ultraflight-0.3.jar
6 Nov 2026
ultraflight-0.25.1.jar
2 Nov 2026
ultraflight-0.24.10.jar
31 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.