How to Force Hardcore Mode on Every New World

You can require every new world to use Hardcore mode without relying on players to manually cycle the game mode button on the world creation screen.

Enabling Forced Hardcore

1. Navigate to the config folder inside your Minecraft directory and open the Difficulty Lock Mod configuration file in a text editor.

2. Locate the forceHardcoreMode setting and enable it.

3. Optionally, check disableCreativeModeSelection and forceCheatsDisabled and enable both if you want to make sure no world-setup toggles conflict with a strict survival challenge.

4. Save the configuration file and restart Minecraft.

How Overrides Work

You do not need to disable forcePeaceful, forceEasy, forceNormal, or forceHard before turning on Hardcore mode. Enabling forceHardcoreMode automatically overrides all other difficulty settings in the configuration.

When you open the Create New World screen and generate a fresh world, Hardcore mode is applied automatically. Just like standard vanilla Hardcore, the world is fixed to Hard difficulty and players only get a single life. If you ever want to create regular Survival worlds again later, open the configuration file, disable forceHardcoreMode, and restart the game before creating your next world.