LazyRAMMods · 1.21Automatic client-side RAM optimization through deduplication, compact memory structures, adaptive cache cleanup and Deep AFK mode.
Miscellaneous client-side optimization mod
Miscellaneous client-side optimization mod
Polydium is a resource made by Wyvest. It supports Minecraft 1.21 – 26.x. It has been downloaded 35 times on Modrinth. The last update came out on Oct 14, 2026.
Polydium has had 72 releases on Modrinth since Oct 12, 2026. 72 of them came out in the past year. The newest is v1.0.6, released on Oct 14, 2026. It is made for Minecraft 26.3. It runs on Fabric. The download is 547 KB.
| Version | Released | Minecraft | Type |
|---|---|---|---|
v1.0.6 | Oct 14, 2026 | 26.3 | Release |
v1.0.6 | Oct 14, 2026 | 26.2 | Release |
v1.0.6 | Oct 14, 2026 | 26.1, 26.1.1, 26.1.2 | Release |
v1.0.6 | Oct 14, 2026 | 1.21.11 | Release |
v1.0.6 | Oct 14, 2026 | 1.21.10 | Release |
Miscellaneous client-side optimization mod built by Polyfrost. On average, adding Polydium alongside the OneClient modpack improves average FPS by 20%.
The magic of this mod is how it works with other mods. Polydium works the best alongside Sodium, using its infrastructure to improve performance in mods such as 3D Skin Layers.
Notable features:
Written by Wyvest. Read it with pictures on Modrinth.
This mod runs only on your own game. Servers do not need it, so you can use it on any server.
Install Fabric for Minecraft 1.21 – 26.x.
Add the mods it needs: Fabric Language Kotlin, OneConfig and Fabric API.
Download the .jar file from Modrinth and put it in the mods folder of your .minecraft directory.
Start Minecraft with the Fabric profile.
With the CraftRank Launcher you can skip these steps: open Mods, search for Polydium and click Install.
| Resource | Downloads | Versions | Last update | Price |
|---|---|---|---|---|
| Polydiumthe one you looked at | 35 | 1.21 – 26.x | 27 days ago | Free |
| 81 | 1.21 | Sep 8, 2026 | Free | |
| 142.4M | 1.16 – 26.x | 12 days ago | Free | |
| BadOptimizationsthosea | 47.8M | 1.19 – 26.x | Sep 16, 2026 | Free |
Yes. Polydium supports Minecraft 26.x. All supported versions: 26.x, 1.21.
Yes. Polydium is free to download from Modrinth.
Client-side. Polydium goes in your own mods folder and works on any server, including servers without mods.
Yes: Fabric Language Kotlin, OneConfig, Fabric API. Install it before Polydium.
Yes. The last update came out in the past day.
The closest ones are LazyRAM, Lithium and BadOptimizations. Compare all alternatives
LazyRAMMods · 1.21Automatic client-side RAM optimization through deduplication, compact memory structures, adaptive cache cleanup and Deep AFK mode.
LithiumMods · 1.16 – 26.xNo-compromises game logic optimization mod, useful for both single-player games and multi-player servers.
Optimization mod that focuses on things other than rendering
Memory Leak FixMods · 1.16 – 1.20A mod that fixes random memory leaks for both the client and server
EmbeddiumMods · 1.16 – 1.21A powerful, mod-friendly, FOSS client performance mod for NeoForge
Better Block EntitiesMods · 1.21 – 26.xA Minecraft optimization mod for Fabric-Sodium that improves framerates by improving block entity rendering via a hybrid renderer
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