I apologize if the description was inaccurate for you, but both 3d printed parts and flat paper cards are needed for the game. Thanks for the feedback, I will improve the description.
Since I tested the game in a paper prototype, I also have the parts in the form of a simple cutout card with tabs for better handling. I will put a template of the parts to cut out in one of the updates, so that the game can be played in a pure flat printed version.