1.9.3-1.21.1-neo is a release file of the Minecraft mod Spectrum for NeoForge, made for Minecraft 1.21.1. It was published on March 16, 2026 and is 84.1 MB in size. For the full description, screenshots and every other version, visit the Spectrum mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
