Set in 2320 on Jupiter’s moon Callisto, The Callisto Protocol follows Jacob Lee, an inmate caught in a mysterious outbreak at Black Iron Prison. As prisoners change into monstrous creatures, he fights to escape while uncovering secrets tied to the United Jupiter Company. The game frames its survival horror around isolation, tension and a hostile lunar setting, putting Jacob’s struggle at the center of a narrative-driven, third-person experience.
Combat mixes ranged weapons with close-quarters fighting, so encounters demand shifts between shooting and hand-to-hand attacks. Jacob can use a gravity weapon once employed by prison guards, and the description emphasizes adapting to creatures that evolve rapidly. Scavenging also lets players unlock weapons, gear and abilities. These systems give the horror a tactical edge: survival depends on responding to immediate threats as well as making use of what can be found along the way.
The store lists the game as single-player, making its format a focused journey through Jacob’s escape and the mysteries of Callisto rather than a shared multiplayer session. Steam Achievements and full controller support are also listed.
