Hello! The very basics are similar to Blades - Position & Effect, the way you roll for Actions, Resistance, Stress, Flashbacks - but above that there are a lot of fairly substantial changes to the structure of the game. We have very different phases to Blades: we have an entire wilderness phase designed to make travel feel much more significant; there's an investigation phase which evokes the sort of procedural sleuthing and tracking of a monster; our downtime phase has very different emphases. There's an extremely silly optional magic system. It's quite a lot. Hope that's a useful answer!