
PET Bottle Rocket
Make a Water Bottle Rocket! Inspired by STEM Learning.
Screenshots






About this Mod
PET Bottle Rocket
What is this?
This mod allows you to make a Water-powered Rocket! No pressure needed.
What's with the name?
Plastic bottles are called ペットボトル (PET bottle) in Japanese.
How do I make one
Make a Bottle. These plastic scraps can be found in Blacksmith chests.
You can either fill it with water and then put the cap on or you can put the cap on first and then fill it with water. Fill it like you would for a glass bottle.
Do NOT forget the caps. They generate in dungeon chests.
Craft fins and rocket cap.
And assemble the rocket!
Usage
You can throw or place them down and Sneak+Right Click to activate the rocket. It will deal some knockback and deal some damage if it hits something. Upon hitting a solid block, if activated or thrown in Survival Mode, will drop 4 Plastic Scrap and 6 Paper so you can recover some of the material for the rocket. Be warned that this is not an accurate shot and will likely deviate quite a bit.
Available Versions
How to Install PET Bottle Rocket 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 (1.20.4).
Install Mod
Open the mod browser in the dashboard and search for "PET Bottle Rocket". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.4
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
PET Bottle Rocket 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 (1.20.4). You can switch loaders with one click in the panel.
Is PET Bottle Rocket compatible with fabric?
PET Bottle Rocket officially supports fabric for Minecraft 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with PET Bottle Rocket – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if PET Bottle Rocket 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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