odyssey-1.0.9-neoforge-1.21.1.jar is a release file of the Minecraft mod Odyssey: The Beginning for NeoForge, made for Minecraft 1.21.1. It was published on March 14, 2026 and is 16.6 MB in size. For the full description, screenshots and every other version, visit the Odyssey: The Beginning mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.