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SPECIFICTION
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Seed Atlas

github.com

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Spec score 6.9 #19 of 24 in AI Computer Use Agents

What it is

Seed Atlas is a free map viewer and seed-search tool for Minecraft. Users choose a Minecraft version, enter a seed, and inspect the resulting map or search a selected area. It covers biomes and structures in the Overworld, Nether, and End, including searches for slime chunks. Searches can use all available CPU threads, combine conditions, and apply Lua filters. Session files let users save searches and continue them later. The README says support extends through Minecraft releases up to 26.3. Seed Atlas runs on Linux, macOS, and Windows and is licensed under GNU GPLv3. The project is based on cubiomes-viewer by Cubitect. It is not an official Minecraft product and has no association with Mojang or Microsoft. Release notes say the Windows installer is unsigned and may trigger a Windows Defender warning. The maker says the application works on M-Series Macs and should work on Intel Macs, but Intel compatibility has not been tested. Further support is directed to Discord.

Spec sheet

Product
Seed Atlas is a fast map viewer and seed-finding tool for Minecraft.Read 9 Oct 2026 · github.com
Support
The release notes direct users to the maker's Discord for further support.Read 9 Oct 2026 · github.com
License
Seed Atlas is licensed under GNU GPLv3.Read 9 Oct 2026 · github.com
Advanced search
Seed searches can combine conditions and use Lua filters.Read 9 Oct 2026 · github.com
Advanced searches
Users can combine search conditions and apply Lua filters.Read 9 Oct 2026 · github.com
Compatibility notice
The project says Seed Atlas is not an official Minecraft product and is not associated with Mojang or Microsoft.Read 9 Oct 2026 · github.com
Dimensions
It can explore biomes and structures in the Overworld, Nether, and End.Read 9 Oct 2026 · github.com
How to use
Users select a Minecraft version, enter a seed, then explore the map or search a selected area.Read 9 Oct 2026 · github.com
macOS compatibility
The release notes say Seed Atlas works on M-Series Macs and should work on Intel Macs, which the author says they have not tested.Read 9 Oct 2026 · github.com
macOS support
The release notes say Seed Atlas works on M-series Macs and should work on Intel Macs, which the maker had not tested.Read 9 Oct 2026 · github.com
Minecraft affiliation
The README says Seed Atlas is not an official Minecraft product and is not associated with Mojang or Microsoft.Read 9 Oct 2026 · github.com
Minecraft versions
The README says Seed Atlas supports Minecraft releases through 26.3.Read 9 Oct 2026 · github.com
Origin
Seed Atlas is based on cubiomes-viewer by Cubitect.Read 9 Oct 2026 · github.com
Performance
Searches can use all available CPU threads.Read 9 Oct 2026 · github.com
Saved searches
Searches can be saved and resumed with session files.Read 9 Oct 2026 · github.com
Saved sessions
Searches can be saved and resumed with session files.Read 9 Oct 2026 · github.com
Search
It can search large areas for biomes, structures, and slime chunks.Read 9 Oct 2026 · github.com
Search speed
Searches can use all available CPU threads.Read 9 Oct 2026 · github.com
Windows installation
The release notes say the Windows installer is not officially signed, so Windows Defender may show a warning because it is unknown.Read 9 Oct 2026 · github.com
Windows notice
The release notes say the Windows installer is unsigned and may trigger a Windows Defender warning because it is unknown.Read 9 Oct 2026 · github.com
Worlds
It lets users explore biomes and structures in the Overworld, Nether, and End.Read 9 Oct 2026 · github.com

Strong points and limits

Strong points

  • Searches biomes, structures, and slime chunks
  • Covers Overworld, Nether, and End dimensions
  • Uses all available CPU threads for searches
  • Lua filters enable combined search conditions
  • Session files save and resume searches

Limits

  • Windows installer is unsigned
  • Intel Mac compatibility is untested
  • Not an official Minecraft product
  • Supports releases only through 26.3

Who it suits

Seed Atlas suits Minecraft players who need map previews, biome or structure searches, and reusable seed-search sessions. It is relevant to users on Linux, macOS, or Windows who accept the project’s compatibility notices.

Verdict

Seed Atlas focuses on detailed Minecraft seed exploration, with multithreaded and filterable searches plus saved sessions. Its GNU GPLv3 license and three desktop platforms make it accessible, while platform notices matter during installation.

Where Specifiction places it

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