Locked In

Locked In

Overhaul of vanilla's hidden lock feature

by
75 Downloads
fabricquiltstorage
Rent Server with this Mod

Screenshots

Crafting
Trying to open locked chest
Key data

About this Mod

Locked In

Overhaul of vanilla's hidden lock feature.

Items

  • Key
    Allows to lock/unlock containers.
  • Master Key
    Allows to open any lockable container even if there is lock on it.
  • Lockpick
    Allows to unlock any container if it isn't unbreachable.

Enchantments

  • Unbreakable lock
    Container that was locked by key with this enchantment can't be broken unless unlocked again.
  • Unbreachable lock
    Container that was locked by key with this enchantment can't be opened with lockpick.

Recipes

  • Key Duplication
    Place key that needs to be duplicated, one empty key and a name tag.
  • Key "Cleaning"
    To remove key id and duplication status press key against a grindstone.
  • Additionally, there is EMI support.

In action

Container being locked and unlocked by key

FAQ

  • Can I use this mod in my modpack?
    Yes, of course!
  • Can I rehost this mod on different mod platform?
    No. This mod is available on Modrinth and CurseForge. That's it.
  • Ports to different mod loaders?
    Nah. At least not now. Currently only Fabric and Quilt are supported.
  • Is it needed on both server and client?
    Yes. It adds a few items.

Available Versions

Small updaterelease
MC 1.21, 1.21.1fabric, quilt
May 2, 2026
Main releaserelease
MC 1.21.1fabric, quilt
April 25, 2026

How to Install Locked In on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Locked In". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricquilt

Minecraft Versions

1.21.1, 1.21

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Locked In server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Locked In compatible with fabric and quilt?

Locked In officially supports fabric, quilt for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Locked In – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Locked In consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Locked In with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.11.21