NeoOrigins

NeoForge port of Origins with a JSON-first power framework, an event dispatcher, projectile + VFX pipeline, and an extensive pack-author and Java API surface.

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This site documents the Minecraft 26.x builds. Where the 1.21.1 build behaves differently, the page says so in a note that starts 1.21.1 vs 26.x.

Reference

   
Power Types Every built-in type a power JSON can use, one page per category.
Actions Every entity_action verb and its fields.
Conditions Every condition verb and its fields.
Events Which events fire when; how to attach actions to them.
Concepts Costs and upkeep, toggles, keybinds, cooldowns and the HUD.
Evolution Kill-based tier progression for every origin.

Project