ModsFinder

Aliens & UFOs

by Hugouououo

Aliens & UFOs puts alien spaceships and a new species into Fabric worlds, with structures that appear at the highest points of the map.

FabricClient and serverMIT LicenseOpen source1.21.1 – 1.21.8

What it does

Generated structures are the main addition: alien spaceships spawn at the highest Y coordinates of a world, and some of them appear in certain End biomes. The mod also brings a new species, a new painting, four blocks and a craftable gun. Worldgen structure mods from other authors are noted as compatible.

The content runs on client and server, so a multiplayer server and every player must both have it installed. Files are published for Fabric only, across eight release versions 1.21.1 – 1.21.8, with 1.1 for 1.21.8 as the latest build. Translations cover Portuguese for Brazil and Portugal and Spanish for Mexico and Spain. The code is open source under the MIT License, and the author credits Kaupenjoe's tutorial series as a basis for the project.

Key features

  1. Alien spaceship structures

    Spaceships generate across the world, reaching further into the sky than most structures do.

  2. New species

    A newly discovered alien species is added alongside the spaceship structures.

  3. Craftable gun

    A gun item can be crafted with the mod's materials for use in the game.

  4. Four new blocks and a painting

    Four blocks and a new painting are included in the mod's content.

Compatibility

Latest build for each game version and loader.

1.21.81.1
1.21.71.1
1.21.61.1
1.21.51.1
1.21.41.1
1.21.31.1
1.21.21.1
1.21.11.1
ReleaseBetaAlphaNot available

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

Questions

Does Aliens & UFOs need Fabric API?

No required dependency is listed for Fabric. No other required dependency is named.

Must the server have Aliens & UFOs installed?

Yes. Installation covers the server and each player's game.

Does Aliens & UFOs work alongside other worldgen mods?

The author states that it is compatible with other worldgen structure mods.

In the catalog

Aliens & UFOs is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 17,695 mods support Minecraft 1.21.8.

World generation mods8,515Fabric modsMods for 1.21.817,695

Similar mods

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

What the author says

### ### The Aliens are here! 👽 And they came in peace.... unless you mess with them, of course. This new species can be found in a new structure, their spaceship: The UFO. This structure spawns at the highest Y coordinates in your world! They also appear in certain End biomes (for now). ( Special thanks to Kaupenjoe…
Hugouououo, on the Modrinth page

Official listing

Owner
Hugouououo
Published
2025-06-11
Updated on Modrinth
2026-01-18
Facts verified
2026-10-15

Tags

EquipmentMobsWorld generationAdventureUtility
Open on ModrinthCompare