Alex's Caves
by AlexModGuy
Alex's Caves adds six rare cave biomes beneath the Overworld surface, each with its own blocks, items, mobs and mechanics.
What it does
Six uncommon underground biomes are added to the Overworld. Each one brings its own blocks, items, mobs and mechanics, and each may set its own ambient particles, fog, brightness and light color, so the caves differ from one another in look and behavior.
A player locates the biomes by finding an Underground Cabin in the Overworld. Its loot barrels hold cave tablets and a guidebook covering how to find and explore every biome. The mod's wiki has a Getting Started section for new players. Shaders are discouraged, since many can alter the look of several biomes.
The mod requires Citadel on Forge and NeoForge, and it runs on the client and the server, so both need it. It is published for 1.20.1 only, and it is open source under the GNU Lesser General Public License v3.0 only.
Key features
Six rare cave biomes
The mod places six underground biomes, each rare enough that a world may hold only a few of them.
Unique biome blocks and mobs
Each biome brings its own blocks, items, mobs and mechanics, so the caves differ from one another.
Cave Compendium guide
A guide book found in cabin loot lists the biomes and how to reach and explore them.
Per-biome atmosphere
Ambient particles, fog, brightness and light color are set separately for each biome.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Required by 30 mods
Use cases
Exploring deep caves
Players searching for uncommon underground areas can follow the cabin and guidebook route to reach the biomes.
Who it’s for: Players who want rare underground biomes with their own mobs and blocks, and server owners who want the biomes available to every player on a server.
How it compares
Cave Stuff Recaved is Forge-only for 1.20.1, under the MIT License, and not open source. Herobrine011840's Cave Biomes is also Forge-only for 1.20.1, but it is licensed as All rights reserved and is not open source. World of Wonders Reforged covers Forge and NeoForge for 1.20.1 – 1.21.1 under the MIT License and is not open source, while Alex's Caves is limited to 1.20.1 and is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Alex's Caves | Forge and NeoForge | 1.20.1 | Client and server | 2024-10-26 |
| Cave Stuff Recaved | Forge | 1.20.1 | Client and server | 2026-06-22 |
| Herobrine011840's Cave Biomes | Forge | 1.20.1 | Client and server | 2026-04-17 |
| World of Wonders Reforged | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-06-30 |
Questions
Does Alex's Caves need Citadel?
Does the server need Alex's Caves?
Which game versions does Alex's Caves support?
Do shaders work with Alex's Caves?
In the catalog
Alex's Caves is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 34,764 mods support Minecraft 1.20.1.
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What the author says
Alex’s Caves is a Forge mod for Minecraft 1.20.1 that adds 6 new cave biomes to the Overworld. Unlike most normal biomes, these cave biomes are exceedingly rare - yet they all contain a variety of unique blocks, items, mobs and mechanics that makes them considerable subterranean destinations. These six biomes are the…
Official listing
- Modrinth page
- modrinth.com/mod/alexs-caves
- Owner
- AlexModGuy
- Published
- 2023-11-04
- Updated on Modrinth
- 2024-10-26
- Facts verified
- 2026-10-15