Ultra Hardcore Gamemode
Ultra Hardcore Gamemode adds a button that switches a world into an ultra hardcore mode, with natural regeneration turned off.
What it does
The mod sets the naturalRegeneration gamerule to false automatically once the mode is enabled, so health does not come back on its own. Adding or removing the mod also affects existing worlds. The button needs no setup, though one note from the author says the mode needs a separate feedle configuration to be set up first. The code is open source under the MIT License and is published for Fabric only, across 16 release versions 1.20 – 1.21.8.
Key features
Ultra Hardcore button
A button in the world creation screen starts the Ultra Hardcore gamemode.
Automatic gamerule
Enabling the mode sets naturalRegeneration to false without any manual command.
Limited translations
The button label is not translated into the game locale, and only a few languages are supported.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x9 of 9 versions with builds
1.20.x7 of 7 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
In the catalog
Ultra Hardcore Gamemode is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from ferdinandkeller
Similar mods
What the author says
Ever wished the game had a 'Ultra Hardcore' gamemode button? Can I remove the mod after the world is generated?
Official listing
- Modrinth page
- modrinth.com/mod/ultra-hardcore-gamemode
- Owner
- ferdinandkeller
- Published
- 2025-09-19
- Updated on Modrinth
- 2025-09-20
- Facts verified
- 2026-10-15