L2 Hostility
by LightLand
With L2 Hostility installed, the mobs a player meets grow stronger or weaker depending on how the player is doing, and some gain special traits.
What it does
The mod assigns every enemy a level based on its surroundings and kind, then raises mob health and damage as that level climbs, with strong traits appearing more often. Players and chunk sections carry a difficulty value: killing mobs raises it, and dying lowers the player's value. The Hostility Detector shows the current difficulty, and the Hostility Orb stops a chunk section from spawning leveled mobs.
The mod is built around progression rather than random strength. Traits, difficulty and drops can be adjusted in the config files and through datapacks, and default datapack settings cover several other mods. L2 Hostility requires Curios API, Patchouli, L2 Library and L2 Complements, and it runs on Forge and NeoForge for 1.20.1 and 1.21.1, with Client and server as the environment. It is open source under the GNU Lesser General Public License v2.1 only.
Key features
Level-based mobs
Each enemy gets a level from its surroundings, and higher levels bring more health, damage and traits.
Trait symbols
Mobs with traits drop ingredients, and a Curse of Envy craft lets players collect trait symbols for better gear.
Safe regions
A Hostility Orb makes a chunk section stop spawning leveled mobs, so an area can be kept clear.
Difficulty detector
The Hostility Detector displays the current difficulty for the player's location and state.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Optional 9
Show 3 more
Required by 1 mod
How it compares
Epic Fight Progressive Difficulty is server-side only and open source under the GNU General Public License v3.0 only, so players need nothing installed. Radiach is a Client and server mod with All rights reserved, not open source, for 1.20.1 – 1.21.1. Progressive Tiers is open source under the MIT License and runs on both sides for 1.20.1 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| L2 Hostility | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-03-26 |
| Epic Fight Progressive Difficulty | Forge and NeoForge | 1.20.1 – 1.21.1 | Server-side only | 2026-09-24 |
| Radiach | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-08-22 |
| Progressive Tiers | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-07-23 |
Questions
Does L2 Hostility need Curios API?
Must the server have L2 Hostility installed?
Can the difficulty be changed without editing code?
In the catalog
L2 Hostility is one of 17,631 Equipment mods on ModsFinder, and one of 9,216 Equipment mods for Forge. 32,366 mods support Minecraft 1.21.1.
More from LightLand
Similar mods
What the author says
Dependency: Curios API, Patchouli, L2 Library, L2 Complements (to utilize some enchantments and effects) This mod adds a difficulty system that makes mobs stronger, and have special abilities.
Official listing
- Modrinth page
- modrinth.com/mod/l2hostility
- Owner
- LightLand
- Published
- 2023-09-03
- Updated on Modrinth
- 2026-03-26
- Facts verified
- 2026-10-15