Blue Heaven is an adult-only mix between action-RPG and Hack & Slash that tells a bloody tale from the perspective of a nihilistic and asocial mercenary working to enforce the law in a decaying futuristic cyberpunk universe in which good and evil they are almost indistinguishable and dirty sex, deadly drugs and decomposing corpses are easy to find in the dark alleys of every metropolis. Soon he will have to leave his world and explore unknown territories to save by sword the last remnant of humanity that he has left, being involved in a conflict of unpredictable magnitudes.