Jack In The Box
A prank mod made for Modfest: Toybox
Screenshots
About this Mod
You walk home after a long day in the mines, you go to stash your spoils of labour when you think you hear a quiet snickering from a distance. after stopping to listen, you hear no more noise, so you shrug it off and go to open your chest when...
BOO!
A GIANT Jack-In-The-Box jumps out at you!
Now imagine that, but your the one snickering, and your friend is the poor soul opening his chests. This is the Jack-In-The-Box mod made for Modfest: Toybox! It looks like a regular old chest until you go to open it, which is when the towering jester springs to life!
Sounds fun, right?
Available Versions
How to Install Jack In The Box 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 (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Jack In The Box". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Jack In The Box 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 (1.21.8). You can switch loaders with one click in the panel.
Is Jack In The Box compatible with fabric?
Jack In The Box officially supports fabric for Minecraft 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Jack In The Box – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Jack In The Box 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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Rent Modded Server
Install Jack In The Box with just one click on your server.