CurseForge · Minecraft mod
Gene Mutation
This is a mod that dynamically increases difficulty. All mobs will gradually undergo mutations.
Quick answer
Which Gene Mutation release should I use?
Gene Mutation gene-mutation-1.0.0-26.3.jar targets 26.3 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Gene Mutation required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Gene Mutation gene-mutation-1.0.0-26.3.jar need?
gene-mutation-1.0.0-26.3.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Gene Mutation without breaking your instance.
Built for Gene Mutation gene-mutation-1.0.0-26.3.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use gene-mutation-1.0.0-26.3.jar. It targets 26.3 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside gene-mutation-1.0.0-26.3.jar. It opens that exact file at the source.
About this project
What does Gene Mutation add?
Description
This is a dynamically increasing difficulty mod, where the genes of all mobs undergo mutations every night. These mutations will gradually accumulate and eventually become very frightening.
Everything can be adjusted in the configuration, and you can find your own difficulty curve.

Mutation Probability is the probability of mutation every night. If it is greater than 1, multiple mutations may occur every night.
Mutation Rate is the multiplier of the degree of mutation. The larger it is, the higher the degree of mutation each time.
Killing a mob has a probability of dropping genes, with a default probability of 1%.
By continuously observing genes with a telescope, it can be transformed into the studied gene. You can use it to know which mutations are currently occurring.

Faced with the increasing mobs, you are not without countermeasures. You can use degenerated gene fragments to reduce the degree of mutation in certain genes. For this you need degenerating table.


Genes
Here is an introduction to all genes.
Name ID Max Description
Health Boost health 200 Increases mob healthStrength Boost strength 50 Increases mob attack damageSpeed Boost speed 30 Increases mob movement speedMini Size mini 50 Shrinks mob sizePoison Touch poison 100 Poison the target of the attackWither Touch wither 100 Wither the target of the attackFlame Touch flame 60 Ignites the target of the attackEnder Touch ender_touch 30 Exchange positions with the target of attackEnder Body ender_body 30 Teleport when hitPotion Constitution potion 15 Grant potion effectsArmor Constitution armor 100 Grant armor and enchantmentsWeapon Constitution weapon 100 Grant weapon and enchantmentsBlade Defense sword_def 100 Reduces sword damageTool Defense tool_def 100 Reduces tool damageSpear Defense spear_def 100 Reduces spear damageHammer Defense hammer_def 100 Reduces hammer damageTrident Defense trident_def 100 Reduces trident damageFire Resistance fire_res 100 Reduces fire damageMagic Resistance magic_res 100 Reduces magic daamgeFall Resistance fall_res 100 Reduces fall damageArrow Deflection arrow_def 100 Refelect projectilesExplosion Resistance explosion_res100 Reduces explosion damageKnockback Resistance knockback_res100 Reduces knockback
Commands
You can open config interface using command "/gene config".
"/gene mutation [id]" can undergo a genetic mutation immediately.
"/gene set <id> <degree>" can set the mutation degree.
"/gene reset" will reset all mutation degree to 0.
"/gene show" can print all mutated genes.
Project description from CurseForge.
Pick your setup
Gene Mutation by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Gene Mutation versions and loaders
gene-mutation-1.0.0-26.3.jar
25 Oct 2026
gene-mutation-1.0.0-26.2.jar
28 Jul 2026
gene-mutation-1.0.0-26.1.2.jar
28 Jul 2026
Looking for an older file? The official CurseForge project page is in Resources.