Lock & Block Security

Lock & Block Security

Adds fun and creative security features to protect your stuff

by
74.9K Downloads
fabricdecorationtechnology
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Screenshots

Showcase
Creative tab
New lasers

About this Mod

Lock & Block

Modrinth
GitHub
Issues

Description:

Lock & Block introduces fun and creative security features to protect your Minecraft world!

Features:

  • Keycards & readers: Program keycard readers to only accept your keycard to access your secret stuff
  • Keypads: Set a secret code to emit redstone; open doors or do whatever you need to secure
  • Tesla Coil: Protect areas by zapping anyone nearby when powered by redstone
  • Force fields: Create an unbreakable wall that you can disable and enable at will
  • Mines: Protect you stuff with explosives, using laser trip mines, land mines, and proximity mines
  • Player Sensor: Detect when a player is near and trigger a redstone contraption
  • Detonator Mine: Use a detonator to remotely detonate land mines
  • Laser Sensor: Detect when players or entities touch a laser with a redstone signal
  • Redstone Laser: Protect an area with painful lasers
  • Reinforced Iron: Reinforced iron blocks are much harder to break than iron
  • Keys and locks Lock reinforced iron door with keys, and activate redstone with keys

Requirements:

Downloads

Contributing and Feedback:

  • Feel free to submit issues or feature requests on GitHub.
  • Contributions are welcome! Fork the repository and submit a pull request with your changes.

Planned Possible Features:

  • Some kind of security cameras

Please note that these features are planned possibilities and not guaranteed. As a solo developer, I'll do my best to
implement them, but development priorities may change.

Support:

For any questions or support, you can reach out to us on GitHub. Your
feedback is highly valued!

Available Versions

LockAndBlock-1.20.1-0.10.1release
MC 1.20.1fabric
January 18, 2026
LockAndBlock-1.21.1-0.10.1release
MC 1.21.1fabric
January 18, 2026
0.10.0+1.21.1 Lock & Blockrelease
MC 1.21.1fabric
January 16, 2026
0.9.0+1.20.1 Lock & Blockrelease
MC 1.20.1fabric
August 11, 2025
0.8.0+1.20.1 Lock & Blockrelease
MC 1.20.1fabric
May 23, 2025

How to Install Lock & Block Security 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 "Lock & Block Security". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1, 1.20.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Lock & Block Security 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 Lock & Block Security compatible with fabric?

Lock & Block Security officially supports fabric for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Lock & Block Security – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lock & Block Security 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 Lock & Block Security 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
GNU General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.11.20.1