Chapter 63 introduces a whole new effects system, designed to make it easy to fire effects from anywhere in the game - and to attach them via data to your item JSON definitions.
Chapter 61 adds the *Town Portal* item, giving the adventurer a quick way to return to town. This is expanded into a more general teleportation system.
Chapter 60 uses layered procedural generation to generate two distinct map types, and blend a transition between them. It also adds nasty lizard monsters!