Random Mob Sizes
by Stoupy51
Random Mob Sizes, a Cursed mod from Stoupy51, gives each mob in the world a randomized scale when it loads, which changes how creatures look and reach.
What it does
Mobs spawning in a world receive a random size within a configurable range, with a default minimum of 0.75 and a default maximum set in the configuration. Each entity keeps the size it is given, and a server owner can set the global range or reset loaded entities to their original size with a command. Optional toggles control whether health, movement speed or attack damage scale along with the size; health scaling is on by default, while speed and damage scaling are off by default.
The mod is server-side and runs on Fabric, Forge, NeoForge and Quilt, with a Data pack option for servers. Clients may run it, but a server needs it for the effect to apply. It is published for 19 release versions, 1.20.5 – 26.3, with 1.3.7 as the latest build for each loader, and it is open source under the MIT License. Snapshot builds are published as well.
Key features
Random size per mob
Mobs receive a random scale on spawn, which changes their visual size and hitbox within the set range.
Global and per-mob ranges
The size range is set globally, and it can be fine-tuned per entity type with the configuration.
Scaling toggles
Health, movement speed and attack damage can each be set to scale with size, with health on and the other two off by default.
In-game configuration helper
A command opens clickable chat messages that prefill configuration commands, which can be edited before they are sent.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x2 of 2 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Modded worlds
Servers running large modpacks can use the per-mob settings to keep modded creatures at a chosen scale.
Who it’s for: Server owners who want randomized creature sizes in survival or adventure worlds, and players who join those servers.
How it compares
Random Size is server required and licensed under the MIT License for 1.20.5 – 26.3, with a feature set that differs from this mod. More Xp More Size shares the same loaders and range and is also server required, under the MIT License. Health Based Mob Scaling is Fabric only, for 1.21.11, licensed under the MIT License, and can be installed on a client or a server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Random Mob Sizes | Fabric, Forge, NeoForge and Quilt | 1.20.5 – 26.3 | Server required, client optional | 2026-09-15 |
| Random Size | Fabric, Forge, NeoForge and Quilt | 1.20.5 – 26.3 | Server required, client optional | 2025-09-26 |
| More Xp More Size | Fabric, Forge, NeoForge and Quilt | 1.20.5 – 26.3 | Server required, client optional | 2025-09-26 |
| Health Based Mob Scaling | Fabric | 1.21.11 | Client or server, optional | 2026-03-22 |
Questions
Does Random Mob Sizes need to be installed on the client?
Which loaders does Random Mob Sizes support?
How are health and speed scaling enabled?
In the catalog
Random Mob Sizes is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Stoupy51
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What the author says
This datapack provides a funny game experience by randomizing every mob sizes in your world! 🎲 🎮 The default scale is 0.75-1.25 but can be configured as you want with the command /function random_mob_sizes:config ⚙️
Official listing
- Modrinth page
- modrinth.com/mod/random-mob-sizes-dp
- Owner
- Stoupy51
- Published
- 2024-05-02
- Updated on Modrinth
- 2026-09-15
- Facts verified
- 2026-10-15