Catalyst - Parasites
Modpackby UwU_Peanut
The world ended not with a bang, but with a hunger from something deep within...
Type
Modpack
CurseForge Downloads
23,768
CurseForge ID
635283
Last Updated
Jun 6, 2026
Description

The worlds eyes were directed towards the sky, as brimstone and ash rained to the ground.
The Nether had split from its core, and the resulting debris pelted the earth. But as the hellish planet assaulted the surface, something stirred deep underground.
Something woke up.

Catalyst is a hardcore apocalypse survival modpack that will test your will to survive against a brand new threat from the unknown. You must use every tool at your disposal for your task... to not just survive, but thrive in this broken world. Find food and water to stay alive, craft weapons and armor to defend yourself from the deadly horde that now roams the land.
Can you survive the apocalypse?
Catalyst tries to accomplish what most Scape and Run modpacks can't; to have a fair and balanced experience, while still being a hardcore modpack. You will find endless config changes and custom content to aid in your endless fight for this world. All mods are designed to interact with each other in a way that makes gameplay feel fluid, fair, and complete.

- 300+ Unique Quests, adding a massive overarching story.
- Magic & Fantasy, the tech in this modpack is kept minimal, and most tech is included late game.
- Unique Bosses, explore the world and challenge difficult bosses for defense against the parasites.
- Rituals & Dark Arts, use evil to fight a greater threat.
- Immersive Gameplay, dynamic seasons, temperature, custom music, sounds, and screen effects.
- Adaptive Mobs, defend against a ever changing world that will have you use every resource to defend.
- Backported Features, no worry about being on an older version!
- Custom Content, never before seen structures, items, events, and worlds. No spoilers!
- And so much more!
ALL FEATURES ARE SUBJECT TO CHANGE
Credits
Huge thanks to everyone who has helped make this project possible!
ExistingEevee
- Nocubes Tweaks mod
- SRP Tweaks mod
- Catalyst Tweaks mod
- Has helped a ton with bugfixes and crashes
Nischi
- SRPMixins mod
- Catalyst Tweaks mod
- Various support along the way
Energon
- Catalyst Tweaks mod
- The entire Source Dialogue system
Evan Wingerter
- Dynamic surroundings compatibility with SRP
Wairne
- All music in Catalyst
ScoutT2Illustrates
- Meteorite texture
That1Guy, Kostilllar, Aaragos
- Lots of overworld structures
Compatibility
Mod Loaders
Game Versions
Screenshots
Similar Modpacks
CottageCore Fantasy
A CottageCore modpack with tons of new crops, animals, biomes and blocks.
Naruto Modpack for Servers
Simple lightweight modpack based around Naruto mod
Cobblemon SMP
The perfect blend of Pokemon & Minecraft, join the world of Cobblemon: now with 1,025 Pokemon!
TNP Limitless 7 - LL7
1.20.1 - Extra Large! Exploring, Adventuring, Questing, Tech & Magic! (2650+ Quests & 735+ Mods!)
Origin - SMP
Choose classes at the beginning of your game and see where it takes you.
Cozy Cottage 𝘸𝘪𝘵𝘩 𝘴𝘢𝘶𝘤𝘦 🧂
The Cozy Cottage modpack with some new mods to a better fun gameplay.
Contained Mods (199)
GeckoLib
A 3D animation library for entities, blocks, items, armor, and more!
Mouse Tweaks
Enhances inventory management by adding various functions to the mouse buttons.
AppleSkin
Adds some useful information about food/hunger to the HUD
Bookshelf
An open source library for other mods!
Controlling
Adds a search bar to the Key-Bindings menu
Entity Culling Fabric/Forge
Using async path-tracing to hide Tiles/Entities that are not visible
FancyMenu
Customize Minecraft's menus with ease!
Collective
🎓 Collective is a shared library with common code for all of Serilum's mods.
Placebo
A library mod
Konkrete
Just another boring library mod.
Enchantment Descriptions
Adds in-game descriptions for enchantments to tooltips.
Comforts
Adds sleeping bags and hammocks for, respectively, portability and turning day to night, without setting new spawns. Com...
CreativeCore
a core mod
Better Advancements
Successor to BetterAchievements for the new advancements system in minecraft 1.12+
CoroUtil
Library Mod for Weather/Tropicraft/ZombieAwareness/etc
YUNG's Better Mineshafts (Forge/NeoForge)
A long-awaited and much-needed abandoned mineshaft overhaul!
AmbientSounds 6
#listentonature
In Control!
Be In Control of mob spawns
Serene Seasons
Seasons with changing colors, shifting temperatures, and more!
Kiwi 🥝 (Neo/Forge)
Minecraft modding library
AutoRegLib
A library to ease menial tasks in mod development.
ConnectedTexturesMod
A resource pack extension library
CraftTweaker
CraftTweaker allows modpacks and servers to customize the game. With CraftTweaker you can change recipes, script events,...
CoFH Core
Contains Core Functionality for all Team CoFH mods. Also does some really cool stuff on its own!
iChunUtil
Shared library used by iChun's mods
Mantle
Shared code for Forge mods
Silent Lib (silentlib)
Library to make writing and maintaining mods easier.
XP Tome
Adds a book that can store a configurable amount of XP.
Snow! Real Magic! ⛄ (Neo/Forge)
Not a magic mod. | Snow Gravity & Accumulation | Snow-covered blocks | Tweak snow behaviors
The Lost Cities
The Lost Cities is a world generation mod
Overloaded Armor Bar
Allows the armor bar to wrap and change color with better than diamond armor
Game Stages
An API for adding stages, for modpacks and other mods to use!
Atlas Lib
A serialzation and math libary for minecraft mods.
Shadowfacts' Forgelin
My fork of Emberwalker's Forgelin, with some sprinkles on top.
ContentTweaker
Allows you to add Items and Blocks
Resource Loader
A small mod that allows users to add their own resources to minecraft without making a resource pack
Spartan Weaponry
Weapons Galore! A whole new arsenal of weaponry made for Minecraft!
Zombie Awareness
- Smarter more aware zombies (and skeletons), they track you down via blood scent, sound, and light source awareness
AnimEmis RL
AnimEmis for multiple mods in rlcraft
Fantastic Lib
You only need this if it's a dependency for another mod you're running
B.A.S.E
Main Library for The Acronym Coders Mod Projects
MTLib
Library files for Minetweaker Addons
Dynamic Surroundings
Alters the fabric of Minecraft experience by weaving a tapestry of sound and visual effects
Rustic
A Medieval Expansion Mod
Armor Underwear Mod [FORGE]
Tough As Nails fans: had too much frost bite or too many heat strokes? Try some Armor Underwear - lets you add cooling a...
Better Questing Tweaker (BQTweaker)
Tweaker mod to change some aspects of BetterQuesting
Carrots Library [FORGE]
Base library used by The_Wabbit's mods
Better Questing
A new and improved questing mod for Minecraft pack creators
Recurrent Complex
Adds a ton more structure generation, dungeons, and randomized loot - Fully customizable
Scaling Health
Change player/mob health and more! Spiritual successor to Difficult Life.
LootTweaker
A CraftTweaker addon that allows loot tables to be edited with ZenScript
Quality Tools
Adds random 'qualities' to tools, affecting their attack damage, dig speed, armor protection, etc.
IvToolkit
Versatile mod framework
No Tree Punching
A small mod to make the first day or two of play more believable. Adds a few new tools and early game resource gathering...
Chunk Animator
A small client side mod that animates the appearance of chunks so that they don't just appear instantly.
Dynamic Trees - Traverse
An updated version of Dynamic Trees for Traverse - adds dynamic versions of Traverse trees and to Traverse biomes.
SimpleDifficulty
Temperature and Thirst mod based on Tough as Nails - Simple Difficulty
Better Questing - Standard Expansion
Standard tasks, rewards, importers and themes for BetterQuesting
Particle Culling
Stops rendering particles that the player cannot view
Inspirations
Adds many small features to Minecraft without significantly changing the game.
MixinBootstrap
MixinBootstrap is a temporary way of booting Mixin in a MinecraftForge production environment.
Scape and Run: Parasites
Add more dangerous mobs (type monster Parasite-themed) to your world
AlcatrazCore
A simple code library
Animated And Emissive: Scape and Run Weapons
Texture pack to add animated and emissive textures for the mod Scape and Run Parasites
OreLib
Support library for OreCruncher's mods
Charm
A vanilla+ mod inspired by Quark, adding lots of small things to the game.
Disenchanter (The Disenchanter Mod)
A small Mod adding a block to disenchant Items
Anvil Patch - lawful
This mod removes the cumulative XP cost when enchanting or repairing items in the anvil, and removes the anvil level cap...
Food Expansion
Simple Mod, which adds new Food into the game.
AstikorCarts [Horse Carts]
A mod that adds carts that can be pulled by other entities.
Reach Fix
Fix for vanillas hit detection and the reach attribute not being used for entities.
XP From Harvest
Literally harvest XP.
RLMixins
Minecraft and Minecraft mod tweaker and fixer for the modpack RLCraft
Dynamic Surroundings: HUDs
Various HUDs that were originally in Dynamic Surroundings
ModTweaker
ModTweaker is an addon for CraftTweaker, a recipe manipulator utility for Minecraft. It allows you to modify the recipes...
Antique Atlas
Antique map featuring infinite scrolling, zoom and custom labeled markers.
Traverse Reforged
Adds beautiful new biomes with a Vanilla feel.
RLCombat
Adds offhand attacking and other features, forked for RLCraft.
Potion Core
Adds a whole lot of potion effects to the game.
Spartan Shields
Needing more Shields in Minecraft? You've come to the right place!
Set Bonus
Inspired by Diablo 2 and Terraria, lets you define custom equipment sets that give attribute modifiers, potion effects,...
Redstone Flux
Redstone Flux API - Energy Transfer in Minecraft.
Item Stages
Allows items to be restricted to a stage.
Chisel
A builder's best friend.
Recipe Stages
Allows for Crafting table recipes to be locked behind stages.
Mob Stages
This mod hooks in to the GameStage API, and allows mob spawning to be gated behind custom progression.
HammerLib
Library used by all of DragonForge team's mods.
Unique Enchantments
Highly customizable powerful Enchantments
Unique Enchantments Base
The Unique Enchantments Base Library
Unique Enchantments - Battle
Highly customizable powerful Combat Enchantments
Potion Descriptions (Forge)
Adds effect descriptions to potion tooltips
Unique Enchantments - Utils
Highly customizable powerful QoL Enchantments
Rad Enchants
A cool collection of enchants
Fish's Undead Rising
Fill your world with all kinds of mobs, undead-related or not.
Dynamic Trees - Quark
Compatibility Mod between Dynamic trees and Quark
SRPMixins
Tweaks and Fixes for SRParasites
FermiumBooter
A simplistic mixin mod utility for loading early and late mixins
No Worldgen 5 You
A simple mod that allows worldgen to be disabled.
NetherEx
NetherEx is a nether content mod.
Ocean Floor - Clay Sand and Dirt
Spawns patches of Clay, Sand, and Dirt, within the Deep Dcean layer of boring gravel
Despawning Spawners
Limiting the amount of spawns a spawner can do in it's lifetime.
LibraryEx
A library for mods that add expansions, explorations, and experiences to Minecraft.
Ore Stages
Allows blocks like ores to be hidden and staged with Game Stages
Scannable
One scanner to find them, and with eye candy bind them.
LootTableTweaker
LootTable support for CraftTweaker / MineTweaker3
Had Enough Items
Cleanroom's JEI fork for 1.12.2 with optimizations and more features
Quark Oddities
An addon to Quark containing thoughtfully designed features for players to build around
Ghost's Explosives
Adds new TNTs, C4, Landmines, Bazookas and much more!
Additional Structures
Adds > 250 new structures that integrate perfectly into your world!
The Midnight
A dark and dreary place of eternal night.
MineTraps
This mod adds several new traps to the game!
Torch Slabs Mod
Allows Torches & Lanterns to be placed on top and the side of half slab blocks
Universal Tweaks
A community project to consolidate various bugfixes and tweaks into a single solution for Minecraft 1.12.2
Future MC
Adds things from 1.13, 1.14, 1.15, and 1.16.
Red Core
Red Core is the foundational library for Red Studio projects and associated projects.
StellarCore
Full range of optimized mod for a better 1.12.2.
MixinBooter
The Mixin Library for 1.8 - 1.12.2.
VintageFix
Load time and RAM use improvements for Minecraft 1.12.2
ConfigAnytime
Allows Forge configurations to be setup at any point in time
Alfheim Lighting Engine
Alfheim is a lighting engine replacement for Minecraft, optimized for performance and fixing many bugs
Fluidlogged API
A library mod that adds highly customizable fluidlogging to 1.12.2!
Aqua Acrobatics [Forge]
Fancy swimming, elegant sneaking: modern movement without compromises in 1.12.
Fixeroo
I fix and optimize Minecraft code when i feel like it
Ore Tweaker
Disable, tweak and add your own ore generation features using JSON for Minecraft Forge - OreTweaker
KJLib
The library mod for all my other mods.
Better Questing - Quest Book
Adds a quest book to Funwayguy's Better Questing Mod
Extra Alchemy
A handful of Vanilla-friendly new potions
LimeLib
Just a library for my mods.
Minerva Library
A shared modding library for all of my mods
Spartan Netherite
Adds Netherite variants of Spartan Weaponry weapons and shields.
Mob Dismemberment
Several mobs will break apart to gibs when killed!
CookieCore
Lib for ephys' mods
Tool Progression
Configurable harvest levels for tools and blocks
Quark: RotN Edition
A modification of Quark for the Rebirth of the Night (RotN) modpack.
Ender's Modpack Tweaks
General Tweaker mod inspired by Universal Tweaks, with a focus on modpacks.
Music Triggers
A mod that plays music based on in game triggers
Enchanting Plus
Enchanting Plus
Scape and Run: Parasites Combat Addon (by NoCube)
Adds a variety of weapons and armor to fight against parasites.
Simple Quarry
Adding simple quarry to mine area of blocks
copygirl's Wearable Backpacks
Minecraft mod which adds beautiful, balanced backpacks
Dense Metals
Adds dense ores to the world.
Farming in Rain
Crops grow faster in rain.
Consecration (Fabric/Forge/Quilt)
Makes the undead more resilent except against fire and holy damage, and adds new features to help you slay them
Better Invisibility
True Invisibility: Hide particle effects, armor, weapons, and from mobs
Pocket Nether Link
Never venture to the Nether again!
Modern Ruins Pack
for Ruins (Structure Spawning System)
Totem Expansion
Expands upon Minecraft's Totem of Undying by adding new totems and mechanics
Veining
Introduces a new enchantment: Veining. Pickaxes with this enchantment will crumble entire veins at once.
Furnus
Upgradable and configurable Furnace and Grinder
Cave Generator
A powerful and customizable replacement for Mojang's cave generator.
Dynamic Darkness
Client-side mod that changes minimal vanilla light/brightness level. Also an alternative to Hardcore Darkness.
The Impossible LIbrary
A library mod that makes the impossible possible in Minecraft
Scape and Run: Parasites Survival Addon (by NoCube)
Adds quality of life content to help you survive the parasite invasion.
Scape and Run: Parasites NoCube's Addon Tweaks
A unofficial, but simple mod made to fix various mcreator limitations found in the SRP addons by NoCubes
Malek's Infinity Gauntlet
Remove items, blocks, mobs, from registry to increase load times, decrease ram, and remove duplicate things from mods
Villager Trade Tables - Emerald Edition
Allows adding and removing villager trades and villagers
AssetMover
Allows acquiring of vanilla/mod assets at runtime instead of including them in builds potentially violating licenses.
Fluid Interaction Tweaker
This is a CraftTweaker/GroovyScript addon that enables you to add more fluid interactions.
Scape and Run: Parasites Nests Addon (by NoCube)
Parasite nests will spawn around the world. Try to loot them, but beware of guards.
Camouflaged Creepers
This mod changes the default Creeper texture to the texture of the block it is standing on. It supports almost all Minec...
Future Fireproof
Backports fireproof item logic to 1.12.2. Includes per-item fireproof configuration and a new Fireproof enchantment.
Embers Unofficial Extended Life
A fork of a Dwarven-themed Magic Mod. With (even more) bugfixes and additions.
Anvil Patch - Evil
Removes 100% of XP costs and requirements from anvils
Vanilla Anvil Repair
Vanilla anvil repair support for custom items
AnotherTips
A mod that adds tips to the world loading screen
KJ's Cave Root
Never go hungry while spelunking!
Abyssal Depths
Beware the abyss
Dramatic Trees
Dynamic Trees with extra edge.
ExplosionCrafting
CraftTweaker addon for explosive recipes
Mirage Orb
The Mirage Orb creates a ghost of yourself to distract mobs!
Scape and Run: Parasites Meteorite
Modifies the logic of how parasites emerge.
Giacomo's Experience Seedling
Literally farm your experience!
BlahajASM
1.12.2 Optimization and improvements mod, forked from CASM
Unseen's Dungeon Additions
A dungeon and RPG experience, fight fully fledged multi-phased bosses with unique attack patterns.
BaublesEX
A fork of Baubles, customize your bauble types and quantities.
Sound Filters Continued
A client-side mod that adds reverb to caves, and mutes sounds when you're underwater or when the sound is behind a wall.
CatLib
Utilies for noise generation, Hjson, command processing, and some useful data types.
Parasites Addon : OverLast
Scape and Run: Parasites expansion mod,new HUD,new Item.Defeat Node!
Better Railroads
A mod for better utilizing rails and carts
Catalyst Tweaks
Various additions for the modpack Catalyst Parasites
SelectionGUI Crafting - Continued
Modpack tool that allows crafting with the items you hold in your hands. All possible recipes are shown in a neat GUI, w...
Glare Torch
This torch illuminates a wider area than a normal torch.
Nebula: Lib
A library that makes game setup easier.
Enigmatic Legacy²
An unofficial backport for mod Enigmatic Legacy
Arrow Harvest
Harvest Chorus flowers, pumpkins, and melons with arrow shots
Edible Glowstone (Forge)
Allows players to eat glowstone dust, which causes entities around to glow with an outline.
Abyssal Depths: Going Deeper
A resource pack that overhauls the original Aquatic Abyss assets
SRP: Thigh Highed Horrors
Makes the Textures of Scape and Run mobs funnier
Entifier
Configure Entity/Player sizes, jump height, health & more!
Responsive Beacons
Improves the poor responsiveness beacons have to block changes
Scape and Run Tweaker
Adds in integrations to other tweaker mods, as well as offering config tweaks to better your experience.
Harken Scythe: Resharpened
Reap -What- You -Sow- 𓌳 A Hexxit magic mod remake about the art of reaping and channeling blood and souls
Deeper Depths
Trial Chambers, Copper and Geodes backported to 1.12
SimpleNightmares
A mod that adds various sleep events to the game, including nightmares, vicious ambushes and the ability to set a sleep...
Spawn Preventing Beacon
Simple mod that adds new beacon effect to prevent mob spawning.
Charge Thrower
With this mod, you can throw fire charges, with lots of balancing options
Mob Arson
Adds various ways for mobs to arson things accidentally and purposely in various ways.
Better Flint Tools for No Tree Punching
Changes the flint tools' sprites from "No Tree Punching" to fit better with Vanilla.
Configurable Beacons (Forge)
Change how beacons work!


