idas-1.13.5+1.21.1-neoforge.jar is a release file of the Minecraft mod Integrated Dungeons and Structures for NeoForge, made for Minecraft 1.21.1. It was published on April 13, 2026 and is 13.7 MB in size. For the full description, screenshots and every other version, visit the Integrated Dungeons and Structures mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
