There's Something in The Caves Mod (1.21.1, 1.20.1) – The Unknown Mob
There's Something in The Caves Mod will add a new creepy mob to Minecraft. It will only spawn in lush caves and is named "The Unknown". Its movement is…
⬇ DownloadThere’s Something in The Caves Mod will add a new creepy mob to Minecraft. It will only spawn in lush caves and is named “The Unknown”. Its movement is reminiscent of Japanese horror films – sudden and with unnatural poses. He can only be damaged with a healing potion. However, it won’t actively pursue players. Instead, it will attack them if they get too close. Beware, as a single strike from this mob can send a player to their bed.
Features:
- This mob spawns only in Lush Caves and can kill the player instantly with a jumpscare if it gets too close.
- Adds a new layer of challenge and excitement to exploring Lush Caves.
- The mob can only be damaged by a healing potion, making it a unique and tricky opponent.
Screenshots:
There’s Something in The Caves Mod Download Links
For Minecraft 1.21.1, 1.21
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1, 1.20
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.2
Forge version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as 198585.mcaddon
- Download size: 2.2 MB
- Download link checked 26 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.