
Mystic Seas
A mod that introduces mermaids, mermaid tails, and even some siren-related abilities!
Screenshots






About this Mod

I ONLY post my newer mods and mod updates to Modrinth! If you see my mods being uploaded to other websites under my name, THAT IS AN IMPOSTER AND IT HAS BEEN DONE SO WITHOUT MY PERMISSION! PLEASE DO NOT REUPLOAD MY MODS TO OTHER WEBSITES!!! NEVER DOWNLOAD UNOFFICIAL REPOSTS OF MY MODS, AS I DO NOT ENDORSE THEM AND ESPECIALLY BECAUSE THEY COULD BE VIRUSES!!! The ONLY exception are mods hosted on Planet Minecraft with older versions of my mods as that is where I originally started out sharing them!
Originally part of the Sacred Grove Mod in version 1.16.5, The Mermaids from that mod have been ported to 1.20.1, given their own seperate mod, and expanded upon! Now you can trade Prismarine Crystals with the different mermaids in order to obtain their scales, and craft your own Neptune's Favor and become a Mermaid yourself! Trade more Crystals with the Mermaids, and use their scales to customize the color of your tail with a Smithing Table and Prismarine Shards! You can even betray your fellow mermaids, by stealing their hearts to craft a String of Broken Hearts to trade to the Sea Witch to one of her scales to alter the look of your own!
Requires Geckolib, Curios and Kleiders Custom Renderer API
Available Versions
How to Install Mystic Seas on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Mystic Seas". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mystic Seas server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.20.1). You can switch loaders with one click in the panel.
Is Mystic Seas compatible with forge?
Mystic Seas officially supports forge for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mystic Seas – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mystic Seas 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 Mystic Seas with just one click on your server.