The Spelunker Update
by VgLevelUp
The Spelunker Update adds underground cave biomes, metals, gems, alloys and cave-focused gear to the overworld, for Fabric and NeoForge.
What it does
Marble Caves, Crystal Caverns, Magma Vaults and Fungal Grottos are new underground regions, each with its own terrain, mood and resources. Marble Caves hold broad cavern regions dominated by marble, Crystal Caverns contain bright prismatic systems studded with glowing crystal spikes, Magma Vaults form deep volcanic rooms lit by lava, and Fungal Grottos spread giant mushrooms over beds of mycelium, mud and glowcaps. The mod's aim is to make exploring underground feel rewarding in itself, with resources that differ from one region to the next.
The mod is a cave-expansion design built around progression, where players gather rare materials, craft alloys and equip specialized gear instead of only mining and leaving. Foundry alloys are assembled from a structure two blocks tall, the Crucible holds lava that serves as its fuel, and iron armor takes upgrades along smithing routes that each suit a different role underground. Several cave-focused consumables give short-term advantages for scouting and mining. Architectury API and Fabric API are required, and Fabric API is needed only on Fabric.
Key features
New cave biomes
Four underground regions with distinct terrain and resources: marble caves, crystal caverns, magma vaults and fungal grottos.
Overworld metals and gems
Tin, nickel and silver form new ore lines, and topaz, ruby and sapphire come from special cave features.
Alloy foundry
Alloys are made in a two-block structure, and the Crucible stores lava fuel for smelting ore into ingots.
Cave gear and loadouts
Socketed miner's helmets, traversal tools, utility equipment and tonics support scouting and deeper cave resources.
Iron armor upgrades
Smithing routes give iron armor upgrades, and each route suits a separate job during exploration.
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 2
How it compares
The Scorched is a Fabric and NeoForge mod that also runs on client and server, under All rights reserved, with files for 26.1.2. Spelunkers Dream is a server-required mod with client support optional, released under the MIT License, for Fabric and Quilt on 26.3. Cavernous Lite is NeoForge only, server-required, under All rights reserved, for 1.21.10 – 26.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| The Spelunker Update | Fabric and NeoForge | 1.21 – 26.2 | Client and server | 2026-10-08 |
| The Scorched | Fabric and NeoForge | 26.1.2 | Client and server | 2026-06-11 |
| Spelunkers Dream | Fabric and Quilt | 26.3 | Server required, client optional | 2026-10-05 |
| Cavernous Lite | NeoForge | 1.21.10 – 26.2 | Server required, client optional | 2026-07-31 |
Questions
Does The Spelunker Update require Fabric API?
Do servers need The Spelunker Update?
Which game versions does the mod support?
In the catalog
The Spelunker Update is one of 19,031 Adventure mods on ModsFinder, and one of 10,052 Adventure mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
The Spelunker Update expands Minecraft's underground with new cave biomes, metals, alloys, gems, traversal tools, utility gear, and cave-focused crafting systems. Explore fungal grottos, magma vaults, marble caves, and crystal caverns while building new loadouts around foundry alloys, socketed miner's helmets…
Official listing
- Modrinth page
- modrinth.com/mod/spelunker-update
- Owner
- VgLevelUp
- Published
- 2026-03-23
- Updated on Modrinth
- 2026-10-08
- Facts verified
- 2026-10-15