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github-actions[bot] edited this page Jul 17, 2026 · 4 revisions

Adding your own universe with Cosmonautics

The Cosmonautics universe is loaded dynamically from JSON files at runtime, allowing it to be modified using datapacks instead of through an addon mod. Familiarity with datapacks is recommended. Introductory guides to datapacks are commonly available across the internet.

The pages below detail how to customize the universe components currently supported by Cosmonautics:

Peripherals and Programming

  • Peripherals — Sputnik block telemetry, ComputerCraft integration, and local Lua script API.

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