...with all that going on, it's gonna be really hard to convince me that I'm not playing D&D. I'm aware that we're not rolling any dice, and I can see that I don't have "armor class" or "hit points" written anywhere on my character sheet, but my brain is still going to default to D&D.
Right up until you make ONE mistake, the tower falls over and there's nothing you can do about it. You can use all the D&D terms you want, but this kind of mechanic will pull you right out of the "D&D" feel.