ModsFinder

Create Cosmonautics Expansion

by Devina_X

Create Cosmonautics Expansion, added by Devina_X, brings extra planets, oxygen management and space stations to a Create-based world on NeoForge.

NeoForgeClient and serverAll rights reserved1.21.1

What it does

Players travel between planets of a solar system and find new places to explore, each with its own items and features. Oxygen has to be managed away from home, and space stations give a base to return to between trips. Shader support is included, so the added space scenery can use shader packs.

The expansion needs Create, Create Aeronautics and Create Cosmonautics installed alongside it. Create Cosmonautics Expansion runs on client and server, so both the server and every player need it. Files are published for NeoForge only, for 1.21.1, with 1.0.0 as the latest build, released under All rights reserved and not open source.

Key features

  1. Solar system planets

    Several planets can be visited, each offering a different setting to explore and gather resources from.

  2. Oxygen system

    Trips away from a home base depend on managing oxygen, which adds a survival concern to space travel.

  3. Space stations

    Stations serve as bases in orbit where players can stop, store items and prepare the next leg of a journey.

  4. Shader support

    The space scenery and effects can be displayed with shader packs, changing how the new places look.

Compatibility

Latest build for each game version and loader.

1.21.11.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 3

Create AeronauticsBuild anything from airships to planes and cars!
Required
Create CosmonauticsFulfill your childhood dream by exploring space!
Required
CreateAesthetic Technology that empowers the Player
Required

How it compares

Full comparison

Space Explore is licensed under the MIT License, runs on NeoForge for 1.21.1 and is also client and server. Planet Craft is a NeoForge mod for 1.21.1 under All rights reserved, with the same environment. Laicaps is licensed under the MIT License for NeoForge 1.21.1, and Advanced Rocketry 3 covers 1.21 – 1.21.1 under All rights reserved. This expansion is not open source and has files for 1.21.1 only.

ModLoadersGame versionsEnvironmentUpdated
Create Cosmonautics ExpansionNeoForge1.21.1Client and server2026-08-05
Space ExploreNeoForge1.21.1Client and server2025-11-23
Planet CraftNeoForge1.21.1Client and server2026-06-21
LaicapsNeoForge1.21.1Client and server2025-08-24
Advanced Rocketry 3NeoForge1.21 – 1.21.1Client and server2026-08-19

Questions

Does Create Cosmonautics Expansion need Create Aeronautics?

Yes. Create, Create Aeronautics and Create Cosmonautics are all required dependencies and must be installed with the expansion.

Does the expansion have to be installed on the server?

Yes. A server running it needs every connecting player to have it too.

Which Minecraft version does the expansion support?

Files exist for 1.21.1 only, on NeoForge. The latest file is 1.0.0, published on 2026-08-05.

In the catalog

Create Cosmonautics Expansion is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

World generation mods8,515NeoForge modsMods for 1.21.132,366

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Biomes O' Plenty1.7.10 – 26.3Cobblemon1.19.2 – 1.21.1Terralith1.18.2 – 26.3YUNG's Better Nether Fortresses1.18.2 – 26.1.2Dungeons and Taverns1.19 – 26.3Yeetus Experimentus1.18.2 – 26.3

Official listing

Owner
Devina_X
Published
2026-08-04
Updated on Modrinth
2026-08-05
Facts verified
2026-10-15

Tags

AdventureGame mechanicsWorld generation
Open on ModrinthCompare