
Old School Jail
A jail mod for fabric servers, just like the good old days!
About this Mod
Old School Jail Mod
A classic jail mod for Minecraft Fabric servers - just like the good old days!
Features
- Jail Players: Jail players with customizable time limits and reasons
- Jail Management: Set multiple jail locations and delete them as needed
- Permissions System: Full integration with Fabric Permissions API (works with LuckPerms and other permission mods)
- Smart Restrictions: Jailed players cannot:
- Break or place blocks
- Interact with blocks (buttons, levers, etc.)
- Use commands (except
/jail timeto check their sentence) - Teleport or escape (automatic teleport back to jail)
- Configurable: Extensive config file for customization
- Data Persistence: All jails and jailed players are saved and restored on server restart
- Auto-Release: Players are automatically released when their sentence expires
- Original Location Tracking: Players are teleported back to their original location upon release (configurable)
- Logout/Login Handling: Players remain jailed across logout/login and are auto-released if sentence expired offline
- Multiple Jails: Create multiple jails and choose which one to send players to
- Essential Commands Compatible: Fully compatible with Essential Commands - the recommended companion mod
Commands
Main Commands
/jail <player> <time> <reason>- Jail a player in the first available jail- Time is based on config setting (default: minutes)
- Example:
/jail Steve 30 Griefing the spawn
/jail <player> <jail_name> <time> <reason>- Jail a player in a specific jail- Example:
/jail Steve spawn 30 Being annoying
- Example:
/jail release <player>- Release a player from jail early (teleports back to original location if enabled in config)/jail time- Check your own remaining jail time (available to jailed players)/jail time <player>- Check any player's jail time (admin only - requiresoldschooljail.jailpermission)/jail list- List all currently jailed players with details (admin only - requiresoldschooljail.jailpermission)
Admin Commands
/jail set <jail_name>- Set a jail at your current location/jail set <jail_name> <x> <y> <z>- Set a jail at specific coordinates/jail delete <jail_name>- Delete a jail (automatically releases all prisoners)
Permissions
The mod uses the Fabric Permissions API and supports any permissions plugin that implements it (LuckPerms, etc.)
Permission Nodes
oldschooljail.jail- Allows jailing playersoldschooljail.release- Allows releasing playersoldschooljail.set- Allows setting jail locationsoldschooljail.delete- Allows deleting jailsoldschooljail.immune- Makes a player immune to being jailedoldschooljail.time- Allows using/jail time(granted to all by default)oldschooljail.jail- Also allows using/jail time <player>to check other players' jail time
Note: If no permissions plugin is installed, the mod falls back to OP level 2 for admin commands.
Configuration
The config file is located at config/oldschooljail.toml and is automatically generated on first run with helpful comments.
Config Options
The TOML file includes detailed comments for each option. Here's what you can configure:
Time Settings:
input_unit- Time unit for commands (SECONDS, MINUTES, or HOURS)max_sentence_seconds- Maximum sentence length in seconds
Restrictions:
block_commands- Block all commands except /jail timeblock_teleportation- Auto-teleport back if player escapes >50 blocksblock_block_breaking- Prevent breaking blocksblock_block_placing- Prevent placing blocksblock_interaction- Prevent interacting with blocks
Release Settings:
teleport_back_on_release- Teleport players back to original location when released (if false, players must walk out manually)
Messages:
release- Message on manual releasejail_expired- Message when sentence expires
All settings include helpful comments in the config file explaining what they do!
Installation
- Download the oldschooljail-[version].jar for your MC version
- Place the JAR file in your server's
modsfolder - Ensure you have Fabric API installed
- (Optional) Install a permissions plugin like LuckPerms for advanced permission control
- (Recommended) Install Essential Commands for full oldschool experience
- Start your server
Compatibility
- Minecraft Version: 1.21.2-1.21.11
- Mod Loader: Fabric
- Required: Fabric API
- Recommended: LuckPerms or other Fabric Permissions API compatible plugin
- AFK Compatibility: Fully compatible with Essential Commands - the recommended companion mod
License
This project is licensed under the MIT License
Available Versions
How to Install Old School Jail on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Old School Jail". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+10 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Old School Jail 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 (26.1.2). You can switch loaders with one click in the panel.
Is Old School Jail compatible with fabric and quilt?
Old School Jail officially supports fabric, quilt for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Old School Jail – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Old School Jail 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.
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