iMode adds witchery, custom spells, new mobs, 4 new bosses, an infinite dungeon dimension and makes game progressively harder. Also adds a level system. Everythig is toggleable in configurations.
Ritual to activate the defense dome
Sadly it still doesn't work with shaders.
The Owl said it
Shows how and where to place items. Mostly coherent.
You can bind effects to a contract, or sign it (with blood), by placing it on a wall and doing red circles around it.