Necrosmith

"In a dark, dark tower a dark, dark Necromancer is performing a dark, dark ritual as dark, dark clouds swarm… Wait a second! What is a white cat doing here? Assemble the dead Skeletons, zombies, orcs, harpies, elementals, and even robots! Combine the body parts with the appropriate characteristics and attacks to find the perfect combination of survivability, speed, and combat power. Upgrade your tower Build necro labs to grow body parts and make techno-magic devices to upgrade your army of the dead. Explore the world Guide your hordes of the undead through more than a dozen biomes to find the keys to escape from this strange world."