About Alex's Caves (Unofficial Port)
From ModrinthExplore five new rare cave biomes hidden under the surface of the Overworld...
Requires: Citadel (Unofficial Port))
About This Port: This port updates Alex's Caves to work with Minecraft 1.21.1 and the NeoForge mod loader. This is a community-maintained port and is not officially affiliated with the original Alex's Caves developers.
Original Mod: Alex's Caves by AlexModGuy and contributors.
License: This project is licensed under the LGPL Lesser General Public License v3.0 (LGPLv3), inheriting the license from the original Alex's Caves mod.
Credits: Original Mod Authors: AlexModGuy (Lead Developer) [Other original contributors]
Disclaimer: This is an unofficial community port. All credit for the original mod design, artwork, models, and code goes to the original Alex's Caves team. This port exists to make the mod available for newer Minecraft versions while we await an official update.
Support: For issues specific to this 1.21.1 port, please report them to the github repo linked on this page.
Highlights
From source dataGame versions
Built for Minecraft 1.21.1.
Loaders
Runs on NeoForge.
Footprint
Rated a light load on a server.
Alex's Caves (Unofficial Port) on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2.0.10, released 2026-04-25
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| NeoForge | 1.21.1 | 1.21.1 |
From 5 recorded builds of Alex's Caves (Unofficial Port).
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 2.0.10 | 2026-04-25 | 1.21.1 | NeoForge |
| 2.0.9 | 2026-01-24 | 1.21.1 | NeoForge |
| 2.0.8 | 2026-01-19 | 1.21.1 | NeoForge |
| 2.0.7 | 2026-01-17 | 1.21.1 | NeoForge |
| 2.0.6 | 2026-01-14 | 1.21.1 | NeoForge |
Run Alex's Caves (Unofficial Port) on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogWorld generation
Changes or adds to how new terrain, biomes and structures are created.
Runs on your server
From source side supportModrinth lists Alex's Caves (Unofficial Port) as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- NeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓AuthorRaguto, as published on Modrinth
- ✓LicenseLGPL-3.0-onlyFree
