What rules are you reading right now?

I’m rereading HeroQuest 1st edition in anticipation of running it at Dreamation. Our conversation the other day about it put it into my head how underrated it is, and how it deserves to still be played today.

I should probably also read Apocalypse World 2nd edition since I’m running that too, though I am perhaps foolishly assuming my experience with 1st edition will carry me as long as I familiarize myself with the new moves.