When Dungeons Arise: Seven Seas
Elegant - and likely hostile - vessels lost in the seven seas...
About this Mod
Explore, loot and ravage wandering vessels lost in the seven seas.
Seven Seas is an expansion of the structures mod When Dungeons Arise. While the latter focuses on massive land structures, Seven Seas takes this further by adding complex ships and other oceanic dungeons, while following similar design ideas, vanilla customization and datapack possibilities.
Structures List
(as of version 1.0.1)
Corsair Corvette
Pirate Junkship
Unicorn Galleon
Small Yacht
Victory Frigate
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* All pictures taken using Complementary Unbound shaders & during Christmas (Oops?)
FAQ
Can I use this without When Dungeons Arise?
Yes.
Can I use this server-side only without installing it on clients?
Yes.
Will you port this back to 1.12.2?
No.
Do these dungeons generate if I add them on a world I already explored?
Yes. You will have to explore further and load new chunks though! Remember to save a backup of your world just in case.
Are you going to add a config file?
This mod is datapack-based, and therefore datapacks are required to configure it. Public templates will be available soon.
Available Versions
How to Install When Dungeons Arise: Seven Seas on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "When Dungeons Arise: Seven Seas". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+15 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
When Dungeons Arise: Seven Seas 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 4 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.
Is When Dungeons Arise: Seven Seas compatible with fabric and forge and neoforge?
When Dungeons Arise: Seven Seas officially supports fabric, forge, neoforge for Minecraft 1.21.10, 1.21.9, 1.21.8. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with When Dungeons Arise: Seven Seas – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if When Dungeons Arise: Seven 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.
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Rent Modded Server
Install When Dungeons Arise: Seven Seas with just one click on your server.