The TerraTech Mod Manager, or TTMM for short, is a program created by WhitePaw (Aceba1) originally to allow for a safer way to share mods within this community. Now for the purpose of installing and managing mods with the Harmony layout. It has gone through three iterations, TTMM, TTMM2 and the current version , TTMM-GTK, which introduced cross-platform support for modding.
Where do I download this
You can find the latest releases here: