This pack include 9 of my others packages where you can find a lot of different architecture "Lego" style pieces which you can use to make your own constructions, buildings, dungeons, exteriors and interiors. All packages perfectly fit with any fantasy or fantastic environment. With this pack you can save 50% compared to buying packs separately. Totaly bundle keeps more then 1400 different architecture fragments.
Brutal architecture
Alien architecture
Abyss temple
White castle
Project use Nanites in some parts, here is the link on Nanite documentation