About Difficulty Lock
From Modrinth🔒 Sets a difficulty in any world, optionally locked, or force a hardcore mode requirement.
Difficulty Lock adds an easy way to configure the difficulty in all (new) worlds. Can be useful for modpacks, or just in your singleplayer experience if you have a default difficulty you always play with. There are config options to force the Hardcore gamemode, disable cheats, or prevent Creative mode from being selected.
The Create World Screen is correctly updated with the config settings. Also works on (dedicated) servers.
<img src="https://cdn.serilum.com/description/badges/dependencies/includes/customization-bundle.svg" alt="Included in Serilum's Customization Bundle" width="416" height="49">
All available config options:
Show Spoiler
The priority shows how the mod handles when multiple gamemodes are set to true in the config. E.g. if all are enabled all new worlds will be peaceful.
forceHardcoreMode default false
Sets the world game mode to hardcode mode and ignores the other difficulty settings when enabled.
disableCreativeModeSelection default false
Whether Creative Mode should not be possible to select in the world creation screen.
forcedDifficulty default "Hard"
The difficulty that is set in any world. Disabled leaves the difficulty as it is.
forceCheatsDisabled default false
Whether the cheats option should be forced to be disabled on the initial world creation screen.
shouldLockDifficulty default true
When enabled, locks the difficulty in any world so it cannot be changed.
shouldChangeDifficultyWhenAlreadyLocked default false
When enabled, also sets the difficulty in worlds where it has already been locked.
With the default configuration, all worlds will be set to hard with the difficulty locked:
The Create World Screen is also updated.
Here the config options forceHard and forceCheatsDisabled are true:
The mod also allows users to be forced to play in Hardcore Mode, via the config:
You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge or Modrinth ecosystem.
Serilum.com contains an overview and more information on all mods available.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!
Highlights
From source dataGame versions
Supports 29 Minecraft versions, the newest being 26.3.
Loaders
Runs on Fabric, Forge, NeoForge and Quilt.
Footprint
Rated a light load on a server.
Difficulty Lock on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric, Forge, NeoForge, Quilt
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 26.1.2-5.2-fabric+forge+neo, released 2026-10-28
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.20.1 to 26.3 (8 versions) | 26.3 |
| Forge | 1.20.1 to 26.3 (8 versions) | 26.3 |
| NeoForge | 1.20.1 to 26.3 (8 versions) | 26.3 |
| Quilt | 1.20.1 to 26.3 (8 versions) | 26.3 |
From 15 recorded builds of Difficulty Lock.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 26.1.2-5.2-fabric+forge+neo | 2026-10-28 | 26.1.2 | Fabric, Forge, NeoForge, Quilt |
| 26.3.0-5.2-fabric+forge+neo | 2026-10-17 | 26.3 | Fabric, Forge, NeoForge, Quilt |
| 26.2.0-5.2-fabric+forge+neo | 2026-10-17 | 26.2 | Fabric, Forge, NeoForge, Quilt |
| 1.21.1-5.2-fabric+forge+neo | 2026-10-17 | 1.21 to 1.21.1 (2 versions) | Fabric, Forge, NeoForge, Quilt |
| 1.20.1-5.2-fabric+forge+neo | 2026-10-17 | 1.20.1 | Fabric, Forge, NeoForge, Quilt |
| 26.3.0-5.1-fabric+forge+neo | 2026-10-10 | 26.3 | Fabric, Forge, NeoForge, Quilt |
Dependencies
- Required: modrinth project e0M1UDsY (modrinth, not in our catalogue)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Difficulty Lock on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogGameplay & overhauls
New mechanics, content and overhauls that change how the game plays.
Runs on your server
From source side supportModrinth lists Difficulty Lock as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForgeQuilt
- Runs on
- Serverrequired on the server
- Game versions
- 26.3 and 28 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-29Open ↗
- ✓AuthorSerilum, as published on Modrinth
- ✓LicenseLicenseRef-All-Rights-ReservedFree











