Cobbleboost
Cobbleboost targets the rendering and animation cost of Cobblemon's Pokemon entities on the Fabric client, in areas where many of them are loaded.
What it does
Cobbleboost is a client-side optimization for Cobblemon on Minecraft 1.21.1. Six features reduce the work the game does for Pokemon entities: rendering is skipped beyond a configurable distance, distant Pokemon are drawn with simplified level-of-detail models, animation updates are throttled for entities out of direct view, and particle effects are capped in dense areas. Model pre-caching loads Pokemon models during resource loading so they do not stutter the first time they appear in-game.
The mod hooks Cobblemon's rendering and animation code through Fabric Mixins, and every change happens on the client. Server owners do not need to install it, and players can adjust the settings in a configuration screen built with Cloth Config and Mod Menu, or through a command. Cobbleboost is distributed for Fabric only, in its 1.2.1 build for 1.21.1 published on 2026-09-13.
Key features
Distance-based render culling
Pokemon beyond a set distance are not drawn, which lowers the strain on the graphics card when many are spawned nearby.
Level-of-detail models
Distant Pokemon appear with simplified models, so their presence stays visible without the full rendering cost.
Animation throttling
Animations of entities far away or outside direct view update less often, saving CPU time.
Particle limiter
Cobblemon's particle effects are capped in heavy, dense areas to reduce the number drawn at once.
Model pre-caching
Pokemon models are loaded during resource loading, so they do not cause a stutter when first encountered.
In-game configuration
A settings screen and a command let players tune each optimization without editing files.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Cull Particles is an open source, client-side Fabric mod for 1.21 under the CC0 1.0 Universal license, and it handles particles only. NovaStack Performance+ is a client-side Fabric mod for 1.21.10 that is not open source and is released under the MIT License. Cobbleboost covers Cobblemon's Pokemon entities specifically, in version 1.21.1, and is itself not open source under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Cobbleboost | Fabric | 1.21.1 | Client-side only | 2026-09-13 |
| Cull Particles | Fabric | 1.21 | Client-side only | 2024-08-07 |
| NovaStack Performance+ | Fabric | 1.21.10 | Client-side only | 2026-06-04 |
Questions
Does Cobbleboost need to be installed on the server?
Which Cobblemon version does Cobbleboost require?
Can the optimizations be adjusted in game?
In the catalog
Cobbleboost is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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What the author says
All optimizations are client-side only and use Fabric Mixins to hook into Cobblemon's rendering and animation code.
Official listing
- Modrinth page
- modrinth.com/mod/cobbleboost
- Owner
- MarcoErCarrozza
- Published
- 2026-03-04
- Updated on Modrinth
- 2026-09-13
- Facts verified
- 2026-10-15