Books like The Gates of Creation

Wolff-Jadawin, demigod in Earthman's guise and Lord of the World of the Tiers, opened his eyes to see the symbol of the Master-Lord Urizen floating below the ceiling. The summons from the cruelest of the universe-makers was direct and urgent. Jadawin's beautiful wife had been abducted and held captive by the satanic Urizen. To redeem her, Jadawin was required to enter the many-leveled universe constructed by Urizen for his personal torment. Joined by several of his siblings, without his extra-human powers, forced to venture through world after booby-trapped world to storm the gates of creation itself!