
Fathomless Crimson
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
A horror mod with a focus on practical usage and providing equipment for general usage outside of the mod itself
⬇ Download on Modrinth




This is a Modrinth Release for Modpack Authors - More info can be found on the Curseforge Page
Inspired by Born In Chaos, Aquamirae, and of course, the Cave Dweller
Fathomless Crimson is a horror mod that introduces The Undaunted into minecraft, with a hefty focus on practicality and actual gameplay, prioritising the minecraft playthrough over cheap jumpscares and instant deaths. Through new mobs, armor and equipment can be crafted to aid the player's journey, giving a purpose and reason to engage with these mobs.
The Undaunted is not a god. It is not invincible. You can kill it, and you can learn its moveset.
Requires Geckolib, Nexus Layer, and Obscure API in order to function. If you are experiencing animation issues, disable entity shadows in your shader settings.
Features (TLDR)
- The Undaunted, which functions off an accumilated chance system (Check the mobs section)
- Equipment and Loot that can be crafted with drops
- Of course, because every mod has to have this for some reason - Lore found in structures
- A new faction which aids the Undaunted in its hunt
- Animated attacks and movesets
- Completely compatible with servers
- Anti-cheese mechanics. The Undaunted can swim and teleport with a massive delay to restart the chase.
- Configurable event quantity (Bigger value = Less events and longer cooldowns)
- also hallucinations can be completely disabled via common configs
Mobs implemented by Fathomless Crimson have animated attacks and movesets, emphasizing the trust-worthy shield that you've used against other mobs. However, your shield does not gaurantee your safety. Attacks with purple flashes will break through your block, simply unblock to avoid getting block broken. Most Purple Attacks will not deal damage if you are not blocking.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 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: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as FathomlessCrimson-1.2.2.jar — drop this file into the mods folder
- Download size: 12.2 MB
- Download link checked 17 Oct 2026 — working
These come from our own check of the pack file, not from the source page.