
Modrinth · Minecraft mod
Clavis
Locked chests open through a skill-based mini-game, with better performance giving better loot
Quick answer
Which Clavis release should I use?
Clavis 0.2.13 targets 1.21.1 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. All 1 required mods have matching files.
Where it goes
Is Clavis required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Clavis 0.2.13 need?
0.2.13. Change the file and its required mods may change too.
Install ShatterLib | OctoLib first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Clavis without breaking your instance.
Built for Clavis 0.2.13. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.2.13. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install ShatterLib | OctoLib first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.2.13. It opens that exact file at the source.
About this project
What does Clavis add?

Clavis transforms the traditional loot system: every loot chest is now locked and can be opened through a simple yet engaging mini-game. The better you perform, the richer your reward - up to nearly double the loot for a perfect result.

Lock's difficulty depends on how valuable the loot inside is. The richer the loot, the harder the lockpicking mini-game: faster speed, more tasks, and extra rules that change how the game plays. There are 3 main difficulty levels, marked by the color of the smiley in the mini-game interface and the outline color of the lock floating above the chest. This lets you decide in advance whether the chest is worth your time.
What will I get with this mod?
If I'm a player:
- The better my skills, the more loot I get from each chest.
- Opening chests becomes a fun challenge rather than a routine click.
- Rewards feel earned - high-tier loot isn’t just handed over.
If I'm a modpack developer:
- I can make dungeon loot less overpowered in the early game, preventing players from getting strong items too soon.
- Easily balance loot economy and progression.
- Increase player engagement - every chest becomes a small event.
Clavis makes opening chests a part of the adventure, not just a moment of free loot.

WANT TO TRY OUT OUR OTHER MODS? - VISIT SHATTERBYTE.COM FOR MORE INFO!
Project description from Modrinth.
Pick your setup
Clavis by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Clavis versions and loaders
0.2.13
Clavis-NEOFORGE-0.2.13+1.21.1.jar
30 Mar 2026
0.2.13
Clavis-FABRIC-0.2.13+1.21.1.jar
30 Mar 2026
0.2.12
Clavis-NEOFORGE-0.2.12+1.21.1.jar
30 Mar 2026
0.2.12
Clavis-FABRIC-0.2.12+1.21.1.jar
30 Mar 2026
0.2.11
Clavis-NEOFORGE-0.2.11+1.21.1.jar
17 Jan 2026
0.2.11
Clavis-FABRIC-0.2.11+1.21.1.jar
17 Jan 2026
0.2.10
Clavis-NEOFORGE-0.2.10+1.21.1.jar
17 Dec 2025
0.2.10
Clavis-FABRIC-0.2.10+1.21.1.jar
17 Dec 2025
0.2.9
Clavis-NEOFORGE-0.2.9+1.21.1.jar
30 Nov 2025
0.2.9
Clavis-FABRIC-0.2.9+1.21.1.jar
30 Nov 2025
0.2.8
Clavis-NEOFORGE-0.2.8+1.21.1.jar
28 Nov 2025
0.2.8
Clavis-FABRIC-0.2.8+1.21.1.jar
28 Nov 2025
Looking for an older file? The official Modrinth project page is in Resources.