Necrosmith 2

Necrosmith 2 is a necromancer simulator where you assemble undead creatures using body parts from different fantasy races. By combining these parts, you unlock various attacks and skills for your creations. You can grant your undead the ability to fly over mountains, swim across rivers, or traverse lakes of lava. You explore a procedurally generated world featuring dozens of biomes, including dense forests and squelchy swamps.

You manage a unique necromancer tower where you build necro labs to grow body parts. You also construct technomagic devices to gain spells and enhance your warriors. Your undead are stronger at night, and enemy hordes arrive during the day. You must defend against giant monsters and can take titans under your control.