Diluvian Ultra — is a retro first-person shooter in which you will find yourself aboard a living spaceship and fight numerous monsters to save the book of life. According to the plot, the main character, Attila, travels for many centuries across the vastness of outer space on his unique, living, spaceship made of stones and flesh. He fell into a thousand-year sleep and now, awakening from sleep, he found invaders on his ship, endless hordes of monsters that had seized the ship and decided that they could do anything. And now, in the role of Attila, you will have to do everything possible to expel the invaders from the ship. Insane battles, a sea of blood, even more weapons.