They allow one to make Various Dwarven Automata, including the Simulacrum which has only been seen up to now in loadscreens.
It also adds some spellbooks craftable at the forge which do various things including healing for undead and automata.
It's rather like Robco for Skyrim




anyway back on topic cut the person some slack it's sometimes difficult to keep track of the mods you have and if you have a lot of mods this is doubly so, meaning when u find something new AFTER installing DG you logically assume it's from DG. A mistake was made ignore it n move along don't berate em. We are all friends here