
Alpha Gaia
I don't know my version or loader






Alpha Gaia
This is a data pack that adds in an Alpha 1.1.2-style World Preset. Since this is a data pack, it will not be a perfect replica, as many features would require mod changes to do (see Differences below). This is just a way to get the Alpha vibes in vanilla.
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.
Notable Additions from Alpha:
- Mobs
- Only mobs from Alpha can spawn naturally, examples:
- Drowned can spawn from transforming a Zombie into one (not a natual spawn)
- Zombie Villagers can't, because they do have separate IDs
- Baby Zombies can spawn though, as they have the same ID as Zombies
- Only mobs from Alpha can spawn naturally, examples:
- Structures
- Only Monster Rooms spawn
- World Features
- Only the Foliage from Alpha will spawn
- Only the Ores from Alpha will spawn
Differences:
- World Height
- 256 instead of 128. This is more of a past limitation than a unique old feature
- W.I.P: Old Height Add-on
- Nether
- The Alpha 1.2.0 Nether is added to this, despite it not existing in Alpha 1.1.2
- Caves
- Can generate with water in them due to data pack limitations
- Less water on the surrounding surface means less water underground
- Can generate in bodies of water
- Can generate with water in them due to data pack limitations
- Biome Colors
- Are not identical to Alpha (e.g. grass/water/leaves). I tried my best to sample colors, but the foliage color just isn't coming out the same
- Stone Basins
- Are not square and glitchy like in Alpha
These have been adjusted to be close to Alpha, but aren't perfect:
- Ores
- Including deposits, like dirt and clay
- Cave Generation
- Vegetation
- Flowers, trees, pumpkins, sugarcane, cacti, etc.
- Ponds/Lakes/Oceans
- Sandy/Gravel "Beaches"
- Terrain Shape
If you are an Alpha Code fanatic and know of exact spawn rates/probabilities for any of these features, or think you can implement them in a better way, feel free to contribute on the GitHub page or my Discord!
Please keep in mind I wish to keep this as a Data Pack, as there are plenty of other projects that seek to do what I'm doing in the form of a mod, like Moderner Beta.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1, 1.20.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as Alpha_Gaia_1.1.0.zip
- Download size: 390 KB
- Download link checked 28 Aug 2026 — working
These come from our own check of the pack file, not from the source page.