>... combat sequences through procedurally generated towers and buildings, chained together by crafted plot events.

There's a fantastic game out right now called Hades from Supergiant Games (of Bastion fame, this one could comfortably be called "Bastion 2.0") which does this roguelite-action-rpg genre very well. Highly recommended, checkout the trailer from the recent update: https://www.youtube.com/watch?v=zNrt43epkG0