The Callisto Protocol: Day One Edition

About

The Callisto Protocol: Day One Edition drops you into a crumbling prison on Jupiter’s frozen moon, where a biohazard outbreak has turned inmates and guards into ravenous monsters. Play as Jacob Lee, a survivor armed with a mix of brutal melee attacks and firepower, as you navigate claustrophobic corridors and industrial ruins. The game blends intense third-person shooting with resource management, forcing you to balance ammo, health, and stealth to make it through each blood-soaked level. Environmental puzzles and branching paths add variety to the constant threat of hordes, with each escape attempt raising the stakes. The Day One Edition includes a retro-styled prisoner skin and weapon set, a nod to classic survival horror aesthetics. Developed by Striking Distance Studios, known for their work on Dead Space, the game leans into relentless action and body horror, with a focus on tight combat and oppressive atmosphere. Available on multiple platforms, it’s a single-player slog for players who enjoy high-tension chase sequences and a story steeped in corporate conspiracy. Early feedback highlights its punishing difficulty and gory set pieces, though some note repetitive enemy designs.

Storyline

Set on Jupiter’s dead moon Callisto in the year 2320, The Callisto Protocol casts players as Jacob Lee, an inmate in Black Iron Prison. When a mysterious outbreak throws the moon into chaos, Jacob must face his darkest fears to defeat the bloodthirsty creatures that stalk him as he unravels the dark mysteries at the heart of the powerful United Jupiter Company.