
Xaero Seedmap
completes the map using the world's seed
Screenshots

About this Mod
This mod enhances Xaero’s World Map by intelligently filling in unexplored areas using the world’s seed. Instead of the default black or empty regions where the player hasn’t traveled yet, the map is dynamically generated to display terrain as if it had already been explored.
By leveraging the world seed, the mod can accurately predict and render biomes, terrain shapes, and even certain naturally generated structures. This creates a seamless, fully populated map experience from the very beginning, allowing players to plan journeys, locate interesting areas, and understand their world at a glance—without needing to physically explore every chunk first.
In addition to terrain generation, the mod also visualizes select structures (such as villages, temples, or other seed-determined features), giving players valuable insight into potential points of interest. The result is a more informative and immersive mapping system that feels complete, responsive, and far more useful for exploration, navigation, and strategy.
Available Versions
How to Install Xaero Seedmap 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 "Xaero Seedmap". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Xaero Seedmap 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 Xaero Seedmap compatible with fabric?
Xaero Seedmap officially supports fabric for Minecraft 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Xaero Seedmap – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Xaero Seedmap 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 Xaero Seedmap with just one click on your server.