Scaling Difficulty
by Herobrot
Scaling Difficulty raises mob statistics the longer a player travels and the more time passes in a world, using a set of configurable factors.
What it does
Mob strength starts from a baseline multiplier that leaves vanilla stats unchanged, and can rise to a configured maximum such as 2.0 for double stats. Three factors drive the increase: distance traveled, minutes played and blocks above or below a starting height. A delay in minutes can hold back scaling until the difficulty begins to climb. Blocks traveled, for example 300 blocks adding 10% to stats, and minutes played, for example 60 minutes adding 5%, each have their own factor.
The mod is server-side and works on NeoForge for 1.21.1. Only the server needs it, so clients can join without installing it. Cloth Config API is required, and Levelplate is an optional companion. The code is open source under the MIT License, and the project publishes a source repository and an issue tracker.
Key features
Distance-based scaling
Mob statistics grow with the blocks a player travels from the starting point, using a configurable distance factor.
Time-based scaling
Statistics also grow with the minutes a world has been played, with a separate time factor and an optional start delay.
Height-based scaling
Blocks above or below a starting height add to the strength increase through a height factor.
Capped multipliers
A maximum health and damage protection cap, and an absolute maximum multiplier, keep scaled mobs within set limits.
Speedy zombie option
A separate maximum speed multiplier applies only to the special speedy zombies.
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 1
Optional 1
Use cases
Who it’s for: Server owners who want mobs to grow stronger with distance and time played, and modpack authors building progression for NeoForge 1.21.1 worlds.
How it compares
Silent's Power Scale is a NeoForge mod for 1.21 – 1.21.1 that runs as client and server under the MIT License. Difficulty by Distance is server-side only, covers 1.21.1 – 1.21.11 and is released under the GNU General Public License v3.0 only. Buff Mobs works on Fabric and NeoForge for 1.21.1 – 26.3 with a server-side install, under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Scaling Difficulty | NeoForge | 1.21.1 | Server required, client optional | 2026-09-21 |
| Silent's Power Scale | NeoForge | 1.21 – 1.21.1 | Client and server | 2026-04-24 |
| Difficulty by Distance | NeoForge | 1.21.1 – 1.21.11 | Server-side only | 2026-08-16 |
| Buff Mobs | Fabric and NeoForge | 1.21.1 – 26.3 | Server required, client optional | 2026-10-06 |
Questions
Does Scaling Difficulty need Cloth Config API?
Do players need the mod on their client?
Which game version does the mod support?
Can the scaling be limited?
In the catalog
Scaling Difficulty is one of 11,058 Mobs mods on ModsFinder, and one of 4,974 Mobs mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Herobrot
Similar mods
What the author says
Scaling Difficulty is a port from Globox's RpgDifficulty. This mod increase the stats of the mobs over time and distance. ## Only Server-Side required - Client if want to use the HUD for debug testing
Official listing
- Modrinth page
- modrinth.com/mod/scalingdifficulty
- Owner
- Herobrot
- Published
- 2026-06-25
- Updated on Modrinth
- 2026-09-21
- Facts verified
- 2026-10-15