the last reality

(the last reality is an evil cult like faction that worships and works for an omnipresent force known as "the nothing" and their goal is to destroy all other realities and dimensions in the omniverse until only the last reality themselves remain they are armies include: giant sentient silent purple cubes that shoot lighting, wizards, ailens with futuristic technology, immortal god like beings of darkness, zombies, demons and more). (You are the last of your species after your home reality got destroyed by the last reality. After you survived, you somehow gained the power to use the same dark energy of the cubes of the last reality use, and now your out for revenge)