The Expanse: A Space Journey
by IronManIvan
The Expanse: A Space Journey lets players fly their own space ships to real Solar System planets, with the ship's own dimension serving as the route between them.
What it does
Space ships carry players from the world into a space dimension, where planets from the Solar System can be visited and explored. The author describes the aim as battling on planets with friends. Space stations are a planned feature and are not yet in the mod. The mod runs on NeoForge for 1.21.1 only, and both the server and every player need it, since the environment is client and server.
Key features
Space ships
Player-flown ships travel from the world into a space dimension where the planets can be reached.
Solar System planets
The space dimension includes real planets of the Solar System for players to fly to and explore.
Ship points
Points included with the ships mark places to fly to within the space journey.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Laicaps is a NeoForge mod for 1.21.1 under the MIT License and open source, and it runs client and server. Stellar Depths is client-side only and not open source, released under All rights reserved for 1.21.1. Advanced Rocketry 3 covers 1.21 – 1.21.1 on NeoForge and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| The Expanse: A Space Journey | NeoForge | 1.21.1 | Client and server | 2026-08-28 |
| Laicaps | NeoForge | 1.21.1 | Client and server | 2025-08-24 |
| Stellar Depths | NeoForge | 1.21.1 | Client-side only | 2026-06-28 |
| Advanced Rocketry 3 | NeoForge | 1.21 – 1.21.1 | Client and server | 2026-08-19 |
Questions
Does The Expanse need a loader other than NeoForge?
Does a server need The Expanse installed?
In the catalog
The Expanse: A Space Journey is one of 17,631 Equipment mods on ModsFinder, and one of 7,420 Equipment mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from IronManIvan
Similar mods
What the author says
This mod is about exploring the Solar System, fly to planets or battle it out with your friends on many different space ships. Fly high in a space ship and you will be transported to a space dimmension where you can fly to any real life planet you want or build space stations(planed feature).
Official listing
- Modrinth page
- modrinth.com/mod/the-expanse-a-space-journey
- Owner
- IronManIvan
- Published
- 2026-03-31
- Updated on Modrinth
- 2026-08-28
- Facts verified
- 2026-10-15