AdvancementLock
Introduction
In this mod you start with 3 slots and 3 hearts. You unlock those slots and hearts (up to the 10 vanilla hearts) unlocking Advancements.
Difficulty
On World Creation, there is a new option to change the Lock Difficulty, this affects the number of advancements to progress on unlocking all of the slots and health.
There are 3 difficulties:
- Easy: Total unlock with 41.66% of total advancements.
- Normal: Total unlock with 55.55% of total advancements.
- Hard: Total unlock with 83.33% of total advancements.
Here is a PDF File that shows the unlocks for Vanilla with the three difficulties.
NOTE: This PDF is outdated, it is with root adv. and in 1.21.8, so the numbers may not be exact, but it is useful to have an idea of what the difficulty does.
Compatibility
The total advancements are calculated on world start, so it is compatible with datapacks (checked) and may be compatible with most mods (not checked).
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as AdvancementLock-1.0.1.jar — drop this file into the mods folder
- Download size: 282 KB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.