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Spelunkery – Cave Overhaul with Ore Variants Landmarks and Mining Gear V9.1

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Creator: Baileybun

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All 65 security engines found this file clean.
Last checked: 2026-08-07
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Features:

  • A cave overhaul aimed at making mining less repetitive
  • Tweaked material progression to improve the mining experience
  • Rough Cinnabar can be polished on a grindstone to produce redstone dust
  • A set of variant ore types, including support for ores added by other mods
  • Sandstone caves can hold veins of sandstone lapis ore
  • Raw Diamond Blocks generate naturally, sometimes next to a lava pool
  • New landmarks and points of interest underground, with more varied ore generation
  • Multicoloured glowsticks
  • Rope ladders that hang down shafts and abandoned mineshafts
  • Requires the Moonlight library, and has been tested alongside No Man’s Land and Create
  • NeoForge support for Minecraft 1.21.1
  • Made by Baileybun

Mining in Minecraft settles into a routine fast: the same stone, the same ore blocks, the same walk back to the furnace. Spelunkery is a cave overhaul built around three goals — reshaping material progression, filling the underground with things worth finding, and adding tools that make the trip down pay off.

Progression comes first. Ores gain variant forms, with support extending to ores added by other mods, so a sandstone cave can reveal a vein of sandstone lapis instead of the usual block. Raw materials pick up an extra processing step as well: Rough Cinnabar is polished on a grindstone to give redstone dust. Raw Diamond Blocks show up in natural generation too, sometimes right next to a lava pool.

The caves themselves pick up new landmarks and points of interest, and ore generation varies more from one place to the next, so two cave systems stop feeling interchangeable. Getting around them is easier with purpose-built gear: glowsticks in a range of colours, and rope ladders that hang down shafts and old mineshafts instead of forcing a staircase.

Moonlight needs to be installed for the mod to run, and it has been extensively tested for compatibility next to No Man’s Land and Create. This build targets NeoForge on Minecraft 1.21.1.

✅ Description reviewed by the CrashMods Team

Changelog

V9.1 — First release.
Frequently asked questions6 questions

Spelunkery – which game and version is it for?

This mod was made for Minecraft (game version: 1.21.1). The mod's own version: V9.1. After a major game update, older mods may stop working — check the version before installing.

Spelunkery – how do I install it?

Install the mod loader that matches the mod's Minecraft version (Forge or Fabric), then put the .jar file in the .minecraft/mods folder.

Is the download safe?

We checked the file with VirusTotal: none of the 65 antivirus engines flagged it. The full report opens from the "Verified" badge on the mod's page.

How big is the download?

The mod's file size is about 2.0 MB.

Spelunkery – who made it?

The mod's original creator: Baileybun.

Is the mod free?

Yes, downloading from CrashMods is free; registration is not required.

Download Get the latest version of this mod and enjoy!

Mod version: V9.1 Minecraft 1.21.1 2 months ago 2.0 MB
Spelunkery – Cave Overhaul with Ore Variants Landmarks and Mining Gear V9.1 2.0 MB Minecraft Download File

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