Hi dr_max_kurt!
Sorry for taking so long to answer you, we were at a convention (Iberanime LX 2019) playing our games with hundreds of people!
Regarding your question, you can play in whatever form you find best for your group. We are currently playing like this: each player gathers their dice, then everyone rolls the dice and each player checks their threats effects.
We are eager to receive your feedback!
Thank you <3
Playtest is scheduled for beginning of next week !
In the meantime I'm working on a one-page extension, and I made a translation in French : https://chezsoi.org/lucas/jdr/Dungeon Heart B&W v1.6 fr.pdf
Is it ok for you if I share this PDF on my website ? I also would love to suggest it on http://troplongpaslu.fr, a French website that collects single-page RPGs. I think thay would love it !
Also I'm planning to use this to generate some adventurers: http://www.dmheroes.com