Parasites: RTDL
ModpackA somewhat lightweight Scape and Run: Parasites modpack, aiming to be fair but still challenging, to maintain performance, and use mods to make survival possible.
Type
Modpack
Modrinth Downloads
3,718
Modrinth ID
AwrO6zrm
Last Updated
Jun 4, 2026
Description
Run, Think, Defend, and Live.
Explore the world, make weapons, find valuable resources, make a strong base (perhaps, using abandoned bases?), and try to live, before all those things out there destroy you.
Scavenge for supplies, discover new items that can help in your survival, and cooperate with other survivors (more like, friends, if you have any).
Features
Parasites
Hostile beings that quickly adapt and evolve into creatures that can infect ANY living thing around them (except creepers for some reason), so you better do everything you can to prevent the destruction of your world!
Tools and Weaponry
Several items to aid you in survival, from backpacks and simple longswords, to guns, grenades, traps, and others.
A New Dimension(?)
A new dimension (or alternate universe), where the overworld has been taken by parasites a little earlier, with parasites on their last phase of evolution, feasting on what is left. There is some really overpowered loot you can find though. It is not recommended to enter unless you are prepared.
World Options
There are a few options for you to choose in, all with their own features.
I'll be making a survival guide for those who have NO idea what they're doing, so wait up for that!
I talked about world creation types you can choose from, down here!
Default (Boring, isn't it? This won't get you anywhere.)
Lost Cities (Not intended for use anymore, as loot in chests are only intended for The Reflection to use.)
⭐ Biomes O' Plenty (Cool new biomes! A good choice for people who like the basic terrain generation 1.12.2 uses.)
Lost Cities + BOP (Not intended for use anymore, as loot in chests are only intended for The Reflection to use.)
To use these world options, you need to press the "Create OTG World" button in the world list, and pick between these two.
The Wildlands (Cool terrain generation, with huge mountains, volcanoes, and others. Though, doesn't generate any oceans, less structures (just think of it as a hard mode of some sort!) and is incompatible with Biomes O' Plenty.)
⭐ Biome Bundle O Plenty (The BEST choice here. Combines Biome Bundle, an extensive terrain generation mod, and Biomes O Plenty, one of the best biome extension mods out there. There are thousands of new places and structures for you to explore as well to aid in your survival!)
More Information down here:
Note: This dimension will get an overhaul featuring more immersive and bigger buildings/cities (I'm not sure if I'm able to do this), more loot to find, and not look so dry.
The Reflection, an Alternate Universe, where players were a successful civilization.
But, due to the parasitical infection arriving early in their universe, they went extinct, leaving nothing but a shell of what once was. This alternate universe has the parasites on the last stage of their evolution, only feasting on what is left.
Good part about this place though, is that it features REALLY good loot in the countless amounts of chests left behind by the players who once ruled (grenades, food, weapons, armor, etc.)
(psst, hey, if you really do decide to go in the reflection, i recommend going inside one of the buildings IMMEDIATELY, as they WILL hunt you down relentlessly, which is why it's a good idea to be prepared.)
To access The Reflection, you need a bed, 6 skulls or heads of any mob, and 2 Iron Blocks, and do a certain pattern.
1.) Place the bed
2.) Replace the flooring of the bed with Iron Blocks
3.) Place the skulls around it
4.) Keep another set of these blocks to go back to your regular overworld as once you go in there is no bed to be found

There is no goal here, all this shows is how you die.
This modpack is a VERY VERY heavy W.I.P. , expect unfair/unfinished gameplay, and bugs. But as updates go by I will continue balancing the experience and finishing the modpack.
Despite all the balancing changes I've made to the parasites, this modpack is still VERY unforgiving at times. One rupter can even one-tap you with no armor on (if they hit your head, that is), which is why armor is very important.
This modpack is intended to be played with friends, as you may struggle to survive by yourself (don't count on my word I'm not even good at my own modpack it may be a skill issue I just have).
Oh, and if you want to use the Essential Mod, you're gonna need to disable the Alfheim mod, no idea why they conflict with eachother considering they do completely different things.
To use the resource packs and shader packs in this mod pack, it is a requirement to manually install OptiFine for 1.12.2
You may need to allocate atleast 6-8 GB of RAM to Minecraft to run the shaders smoothly (atleast from my experience).
Once I get more gameplay shots while I playtest this modpack, I will also continue to add pictures to the gallery!
If you have found a problem in this modpack, please contact @jt_ferco on Instagram.
Resource Packs: ScouT's SRP Retexture Modernity Modernity Adjunct
Shader Packs: Complementary Shaders Reimagined
Shader Packs: Complementary Shaders Reimagined
Compatibility
Mod Loaders
Game Versions
Screenshots
Similar Modpacks
Infinite Horizons - Modded Superflat Survival
A modded superflat experience
Tornado Alley (ProtoManly's Weather)
Tornado alley, with the use of ProtoManly's Weather
The ULTIMATE Dwellers Collection
NOW WITH 75 TERRIFYING DWELLERS AND CREEPYPASTAS TO KILL YOU BEFORE DAWN!
Create: Think Bigger! V2.4
Create: Think Bigger V2.4 IS OUT!!! #CTB Welcome to "Create: Think Bigger!", a modpack based around mod "Create". Only N...
EMC Maker
1250+ Quests A Unique Modpack for every Player Tech, RPG, Automation or anything. This Pack has it all
Fight or Blight
Immersive Lore-Based Apocalyptic Modpack set in the Ruins of a Fallen Civilization
Contained Mods (48)
Just Enough Items (JEI)
View Items and Recipes
Clumps
Clumps XP orbs together to reduce lag
Entity Culling Fabric/Forge
Using async path-tracing to hide Tiles/Entities that are not visible
Enchantment Descriptions
Adds in-game descriptions for enchantments to tooltips.
Nature's Compass
Nature's Compass is an item that allows you to locate biomes anywhere in the world.
Carry On
Carry On allows you to pick up Tile Entities and Mobs and carry them around!
AI Improvements
Performance and logic upgrades for mod AIs
Biomes O' Plenty
Adds 50+ unique biomes to enhance your world, with new trees, flowers, and more!
Item Highlighter [Neo/Forge]
Highlights newly picked-up items. Simple and convenient.
Tips
Adds a tip section to various loading screens.
The Lost Cities
The Lost Cities is a world generation mod
HT's TreeChop
Fell trees chop-by-chop instead of block-by-block.
Bad Mobs
A mod to blacklist mobs from spawning.
ReplayMod
A Minecraft Mod to record, relive and share your experience.
Ambient Environment
Adds more ambiance to a Minecraft world
Atlas Lib
A serialzation and math libary for minecraft mods.
Responsive Shields
Remove that delay when blocking
Gnetum
Distribute HUD updates over multiple frames to improve performance
The Hordes
Horde Invasions and Zombie Infection
Mob Sunscreen
Stop Zombies and Skeletons from Burning in the Sun!
Complementary Shaders - Reimagined
Preserving the elements of Minecraft with exceptional quality, detail, and performance.
Particle Culling
Stops rendering particles that the player cannot view
MixinBootstrap
MixinBootstrap is a temporary way of booting Mixin in a MinecraftForge production environment.
Collision Damage
A mod that adds wall collision damage even when not using an Elytra.
Born in a Barn
Fixed a Village ChunkLoading Issue
Spartan Shields
Needing more Shields in Minecraft? You've come to the right place!
Hwyla
Hwyla (Here's What You're Looking At) is a UI improvement mod aimed at providing block information directly in-game. It...
Ksyxis
Speed up your world loading by removing unneeded chunks.
SerializationIsBad
A Minecraft coremod aiming to patch serious security vulnerabilities found in many different mods
FermiumBooter
A simplistic mixin mod utility for loading early and late mixins
FermiumASM
1.12.2 Optimization and improvements mod, forked from NormalASM
Scape and Run: Parasites
Add more dangerous mobs (type monster Parasite-themed) to your world
Modernity
Backport of modern vanilla and modded textures to legacy versions
MineTraps
This mod adds several new traps to the game!
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.
Nether API
A library mod for adding End and Nether biomes or structures, and for creating new biome ambience!
Alfheim Lighting Engine
Alfheim is a lighting engine replacement for Minecraft, optimized for performance and fixing many bugs
Scape & Run - Parasites: Retextured
To give out a unique feel for SRP's textures for detail and reduced amount of colours, it features good use for emissive...
Modernity Adjunct
A collection of backports/updates/adaptations of textures from more modern versions of popular mods. Meant to supplement...
SimpleCore API
API used by SimpleOres and other plugins.
SimpleOres
A small mod that adds 4 unique and balanced ores, as well as copper gear.
NeverEnoughAnimation
Adds various animations for inventories
MixinBooter
The Mixin Library for 1.8 - 1.12.2.
FirstAid
First Aid is a game changing mod focused around a new health system.
Hit Indication
Adds hit indicators that show where damage is taken from.
CameraOverhaul (Vintage)
Makes gameplay more satisfying through the use of various camera tilting. Backported to 1.12.2
Tips Extension
A functional and aesthetic extension for the Tips mod on Minecraft 1.12.2, adding pause menu support and customizable br...