ModsJava
Catalyst Tweaks
Minecraft Java mod. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForge





Catalyst Tweaks
Catalyst Tweaks is a mod made for the modpack Catalyst - Parasites, adding a number of small changes, fixes, and additions using several mods, particularly with the lost cities mod.
This mod currently has no configs due to it being built specifically for the Catalyst modpack, but this may change in the future.
Features:
- Combines the lost cities dimension with the midnight dimension
- Adds a nether planet to the overworld sky
- Adds a nether planet to the lost cities sky
- Removes the sun and moon from the lost cities
- Adds custom fog to the lost cities dimension
- Changes the lost city altar to include moonstone lanterns
- Teleporting out of the city dimension will always put you back in the overworld where your original city altar was
- Fixes the midnight replacing blocks within the lost cities
- Adds a custom spawner for enigmoth, ghost rays, and weeping angels within the cities
Quick facts
- Edition: Minecraft Java
- File type: .jar
- 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 CurseForge — 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.
File checked by MCModsHub
- Ships as Catalyst Tweaks-v1b27.jar — drop this file into the mods folder
- Download size: 1.2 MB
- Download link checked 18 Oct 2026 — working
These come from our own check of the pack file, not from the source page.