
Ultra Hardcore Gamemode
Adds an easy-to-use 'Ultra Hardcore' gamemode button. For the tryharders.
Screenshots

About this Mod
Ultra Hardcore Gamemode (UHC)
Ever wished the game had a 'Ultra Hardcore' gamemode button ?
Well now it does.
What the new UI looks like:
FAQ
Can I remove the mod after the world is generated?
Yes you can, adding/removing the mod has absolutely no effect on existing worlds.
The mod works by automatically setting the naturalRegeneration gamerule to false. No need to feedle with settings. It's just a QoL mod.
The button doesn't translate to my locale
Currently only a few languages are supported. If you want to add your language to the mix, you can either ping me to make it available to everyone, or just make a resource pack with a selectWorld.gameMode.ultra_hardcore language key.
Available Versions
How to Install Ultra Hardcore Gamemode on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Ultra Hardcore Gamemode". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.7, 1.21.6 (+13 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Ultra Hardcore Gamemode server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.
Is Ultra Hardcore Gamemode compatible with fabric?
Ultra Hardcore Gamemode officially supports fabric for Minecraft 1.21.8, 1.21.7, 1.21.6. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Ultra Hardcore Gamemode – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Ultra Hardcore Gamemode consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Ultra Hardcore Gamemode with just one click on your server.