ModsFinder

Alpha Gaia

by Klinbee

Alpha Gaia is a world-generation data pack that brings Alpha-style world presets into Minecraft.

FabricForgeNeoForgeQuiltServer required, client optionalMIT LicenseOpen source1.20 – 1.21.10

What it does

Alpha Gaia recreates the terrain, mob spawning and world features of early Alpha builds. A world made with its preset gets the sparse, pre-Beta look of those versions. Only the mobs that Alpha spawned appear naturally: Drowned, which replace Zombies in that list, can appear, and Baby Zombies spawn because they share the Zombie identifier, while Zombie Villagers do not, since they use a separate identifier. Monster Rooms are the only dungeon structure that generates, and only the foliage Alpha had is placed, so seeds from that era produce the same results.

The mod is distributed as a data pack, language pack and mod version package, which makes installation simpler. The author notes that the project is meant to stay a data pack alongside other Alpha-style projects, and it is aimed at players who want an Alpha-like world without installing a large mod collection. Alpha Gaia is server required and client optional, so a server that runs it is enough for the terrain and spawning to apply to players who join.

The source code is public and the project is open source under the MIT License. Files are published for Fabric, Forge, NeoForge and Quilt, with builds covering 1.20 – 1.21.10, and the latest file is 1.1.0 for 1.21.10, dated 2025-10-09.

Key features

  1. Alpha world preset

    A datapack preset reproduces the terrain and layout of an early Alpha build when a new world is created.

  2. Limited natural mob spawning

    Only the mobs Alpha spawned naturally appear, so most modern hostile and passive mobs are absent.

  3. Alpha-era world features

    Monster Rooms are the only dungeon structure generated, and only Alpha foliage is placed.

Compatibility

Latest build for each game version and loader.

1.21.x11 of 11 versions with builds
1.21.101.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.91.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.81.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.71.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.61.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.51.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.41.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.31.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.21.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.21.11.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.211.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.x7 of 7 versions with builds
1.20.61.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.51.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.41.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.31.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.21.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.20.11.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
1.201.1.0+mod1.1.0+mod1.1.0+mod1.1.0+mod
ReleaseBetaAlphaNot available

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

Use cases

Who it’s for: Players who want an Alpha-style survival world and server owners who run one, for worlds that use the Fabric, Forge, NeoForge or Quilt loader.

Questions

Does Alpha Gaia need to be installed on the client?

No. It is server required and client optional, so a server that runs it is enough for the Alpha world to apply to players who join.

Which loaders does Alpha Gaia support?

Files are published for Fabric, Forge, NeoForge and Quilt, with the latest build 1.1.0 for 1.21.10 on every loader.

Why do some mobs not appear in Alpha Gaia worlds?

Only the mobs that Alpha spawned naturally are placed, so most modern mobs are absent by design of the preset.

In the catalog

Alpha Gaia is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,569 mods support Minecraft 1.21.10.

World generation mods8,515Fabric modsMods for 1.21.1015,569

More from Klinbee

All projects
X-Ray World Generation1.19 – 1.21.10No Caves1.18 – 26.1Aetherial Islands1.19 – 1.21.11One Survival Island1.19 – 26.1No Void Structures1.19 – 26.1Superflat Dimensions1.19 – 1.21.10

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

This means Seeds from Alpha will not work. Use mods like Moderner Beta if you want to do something like that. The Mod version is simply a package for the data pack and language pack for ease of installing.
Klinbee, on the Modrinth page

Official listing

Owner
Klinbee
Published
2024-11-06
Updated on Modrinth
2025-10-09
Facts verified
2026-10-15

Tags

AdventureWorld generation
Open on ModrinthCompare