
Modrinth · Minecraft mod
Hostile Mobs Improve Over Time
A new difficulty, where hostile mobs get stronger the longer you play, featuring a powerful config menu. With stronger stats and new abilities, are you able to prepare before it’s too late?
Quick answer
Which Hostile Mobs Improve Over Time release should I use?
Hostile Mobs Improve Over Time 2.3+mod targets 26.3 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Hostile Mobs Improve Over Time required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Hostile Mobs Improve Over Time 2.3+mod need?
2.3+mod. 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 Hostile Mobs Improve Over Time without breaking your instance.
Built for Hostile Mobs Improve Over Time 2.3+mod. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.3+mod. It targets 26.3 with Fabric, Forge, NeoForge; 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
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.3+mod. It opens that exact file at the source.
About this project
What does Hostile Mobs Improve Over Time add?
Hostile Mobs Improve Over Time
Hostile mobs get stronger the longer you play. The difficulty is per player, players who have played for a long time will have stronger monsters while new players start with unbuffed monsters.
Can be downloaded either as a datapack or a mod. Mod is only required on the server side.
Each mob is improving differently, if you wish to know how they are getting stronger/which abilities they may have, find the datapack for that mob on my profile page. Documentation sheet can be found on my discord server.
Currently, this datapack affects these mobs:
- Zombies
- Skeletons
- Spiders
- Creepers
- Pillagers
- Vindicators
- Witches
- Drowned
- Endermites
- Cave spiders
- Strays
- Zombified Piglins
- Guardians
- Hoglins
- Ravagers
- Silverfish
- Husks
- Wither skeletons
- Zoglins
- Piglins
Details
Mobs in a 32 block radius get improved based on the players score in the HostileMobs scoreboard. The score defines how much will the mob be buffed. This score increases every 20 minutes (configurable).
The improvements for each level are specified in one of 100 function files for each mob.
The mobs get improved based on the nearest player to that monster.
You can snipe a monster before it is buffed by staying 32 blocks away from that monster. This also means this datapack does not break afkable farms where the player doesnt need to be close/kill the mobs.
Commands
Config menu can be opened by using /function hostilemobs:config. There are settings for setting difficulty, toggleing some mob features, difficulty cap settings and death relief settings.
Difficulty cap can be configured to not allow mobs to be stronger past the set value. Negative cap is used when you are using death relief or to make players start at a certain difficulty.
Death relief is a feature toggled off by default. Enabling it will drop difficulty for players who die by the set amount.
Mob toggles can be used to change which mobs should be improved by the datapack. Turn off mobs which you don't like/are too strong.
The level/difficulty of mobs is tracked by the HostileMobs scoreboard, set the value yourself/players to smth and it will change the difficulty. It increments every 20 minutes. Difficulty (or days) go from 1-100, after 100 mobs stay the same as 100 ones.
Timer can be modified using the config menu
Level Shattering
A feature which enables mobs to rarely drop special shards, which can decrease monster levels. By default, it is enabled ON, and each shard decreases the level by 1. All these settings can be configured in the config menu.
Using shards has a variety of side effects, so better be prepared. Side effects can be toggled on/off.
If you wish to change the drop chances, loot tables for each mob are located in data/hostilemobs/loot_tables/
This feature is now compatible with datapacks that modify loot tables (since V1.8)
There are multiple settings for this feature in the config menu, with more along the way.
How to use level shatter shards? You should be able to figure it out yourself using the hints in the item description and advancements, but if you can't figure it out, its down below.
!SPOILER! How to use level shatter shards
UP TO VERSION 1.8 OF THE DATAPACK: You throw the item on top of a sculk catalyst. The hints were "when in contact with otherworldly technologies", and the advancement image was sculk catalyst.
VERSION 1.9 AND ABOVE:
You consume the shard. The description says it.
To catalyse the shard to make side effects less extreme, stand on a sculk catalyst while you eat it.
Well, at least you tried :)
Future Plans
my to-do list:
- add missing mobs
- add more settings to config menu
- more advancements
Documentation
Documentation spreadsheet can be found on my discord server. It has all the details about stats of each mob at each level and all the new abilities of monsters.
Disclaimer
This datapack buffs the explosion of creepers, so use it at your own risk, as creeper accidents cause even more damage if they explode next to your builds/terrain.
This datapack also adds a new ability to zoglins to change nearby blocks to their nether counterparts, this can be extremely destructive to player's builds and terrain, and is really hard to revert back.
This datapack can also potentionally break raid farms (needs testing).
Other
If you have any questions, suggestions, bug reports, feel free to join my discord server, link in external sources.
License
By downloading the datapack, you agree with the following:You are not allowed to redistribute this datapack in any way
You may modify this datapack, but distributing modified versions is not allowed
You can use this datapack in videos and other, but provide a link to this page in the description
You cannot take credit for the making of this datapack
You may download this datapack only from official sources - currently it is only on planet minecraft and modrinth
Project description from Modrinth.
Pick your setup
Hostile Mobs Improve Over Time by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
5 loader builds26.1.2
5 loader builds26.1.1
5 loader builds26.1
5 loader builds1.21.11
5 loader builds1.21.10
5 loader builds1.21.9
5 loader builds1.21.8
5 loader builds1.21.7
5 loader builds1.21.6
5 loader builds1.21.5
5 loader buildsShowing the newest 12 of 25 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Hostile Mobs Improve Over Time versions and loaders
2.3+mod
hostile-mobs-improve-over-time-2.3.jar
22 Sept 2026
2.3
Hostile Mobs Improve Over Time.zip
22 Sept 2026
2.3+mod
hostile-mobs-improve-over-time-2.3.jar
20 Sept 2026
2.3
Hostile Mobs Improve Over Time.zip
20 Sept 2026
2.2+mod
hostile-mobs-improve-over-time-2.2.jar
18 Jun 2026
2.2
Hostile Mobs Improve Over Time v2_2.zip
18 Jun 2026
V2.1+mod
hostile-mobs-improve-over-time-V2.1.jar
9 May 2026
V2.1
Hostile Mobs Improve Over Time.zip
9 May 2026
2.0+mod
hostile-mobs-improve-over-time-2.0.jar
14 Feb 2026
2.0
Hostile Mobs Improve Over Time.zip
14 Feb 2026
1.11.3+mod
hostile-mobs-improve-over-time-1.11.3.jar
4 Sept 2025
1.11.3
Hostile Mobs Improve Over Time.zip
4 Sept 2025
Looking for an older file? The official Modrinth project page is in Resources.