
OneClient (SkyBlock)
All in one SkyBlock modpack for OneClient, the client for everyone. Boost FPS / performance, world hosting, get all your QoL features, in one place.
Screenshots

About this Modpack
OneClient
OneClient ships the most bleeding-edge mods, packaged with the best visuals out of any client, powered by OneConfig.
SkyBlock
This modpack packages the best Hypixel SkyBlock mods, all verified and checked by the Polyfrost team: the basics (SkyHanni, Skyblocker, SkyOcean, Odin), and some more niche mods (SkyBlock Item List from Meowdding, IQ Addons, Iconographic)
Performance
In the background, our competitors like Lunar Client and Feather/Dawn Client literally run an instance of Chromium in-game to power their GUIs.
Yes, clients actually are running Chrome IN YOUR MINECRAFT...
We use our own rendering library called PolyCompose (based on JetBrains Compose), resulting in drastically better visuals but also performance.
We package almost TWICE as many performance mods as Fabulously Optimized (27 vs 14 mods), meaning performance is significantly better in-game. And don't even get us started with Lunar/Feather...
User Interface
OneClient features a clean and sleek user interface, meticulously designed by actual designers. Optimized for looking good without sacrificing any easy of use. Supports themeing, so you can choose between what you prefer.



HUDs
We package our own HUD mods: EvergreenHUD and VanillaHUD, two of the best HUD mods ever created for Minecraft.
On Hypixel SkyBlock, we support all the major SkyBlock mod HUDs, meaning all your favorite mods' HUDs show in one place.
Fully open-source
This should go without saying, but we are 100% open-source. We haven't had a single private repository on our GitHub since January 2026.
Available Versions
How to Set Up a OneClient (SkyBlock) Server
Order Server
Choose at least 6 GB RAM (10 GB recommended for OneClient (SkyBlock)). Based on player count: per 4 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "OneClient (SkyBlock)" and click "Install". The fabric loader and Minecraft 26.3 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
OneClient (SkyBlock) server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 10 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a OneClient (SkyBlock) server really need?
Minimum 6 GB, recommended 10 GB for stable performance. per 4 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €7.800000000000001/month).
Can I add custom mods to OneClient (SkyBlock) without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (26.3). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
OneClient (SkyBlock) server lagging – performance tips
1) Increase RAM to 10 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
Similar Modpacks
Rent OneClient (SkyBlock) Server
Start your own server with automatic modpack installation.
Details
- License
- GNU General Public License v3.0 only
- Server-side
- Unsupported
- Client-side
- Required
Supported Versions
Start your OneClient (SkyBlock) Server now
From €7.80/month; 10 GB RAM is recommended for best performance.
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