@yongedevil hasn't been around for a year and a half.  I've provided an updated version for the ETT, but am doing it now as a full release, so that it can be in CKAN as well. Original thread here: https://forum.kerbalspaceprogram.com/index.php?/topic/112886-104-yongetech-tech-trees-plugin-v13/ Source Code: https://github.com/linuxgurugamer/YTK_TechTrees Download:  https://spacedock.info/mod/1526/YongeTech: Tech Trees Plugin Re-Revived License:  MIT (see below)