The Callisto Protocol game poster and cover art

Game Introduction

Game Introduction



Genre


Survival Horror, Third-Person Action

Developer & Publisher


  • Developer: Striking Distance Studios

  • Publisher: Krafton, Inc.


  • Release Timeline


  • Announcement: December 2020

  • Initial Release Date: December 2, 2022

  • Post-Launch Updates & DLC: 2023 (including the Final Transmission story DLC on June 27, 2023)


  • Platforms


    The Callisto Protocol is available on the following platforms:
  • PC: Windows (Steam, Epic Games Store)

  • PlayStation: PlayStation 4, PlayStation 5

  • Xbox: Xbox One, Xbox Series X|S


  • Story Overview


    Set in the year 2320, the game follows Jacob Lee, a cargo pilot for the United Jupiter Company (UJC). After a routine delivery to the Black Iron Prison—a maximum-security prison located on Jupiter's moon, Callisto—a sudden riot breaks out, unleashing a horrific biological outbreak. Jacob is wrongfully accused of causing the catastrophe and must fight for survival against the infected prisoners (called "Biophages") and the mysterious forces behind the outbreak. The story explores themes of corporate greed, biological experimentation, and the fragility of human morality in the face of terror.

    Setting


    The game is primarily set inside Black Iron Prison, a sprawling, decaying penitentiary carved into the icy surface of Callisto. The prison is divided into multiple facilities—such as the Habitat, the Morgue, and the Cryo Labs—each with its own grim atmosphere and hazards. Outside the prison, Jacob briefly ventures into the frozen surface of Callisto, where the harsh environment adds to the sense of isolation. The world is heavily inspired by the Dead Space series (many key developers worked on that franchise), but with a more claustrophobic, melee-focused combat system.

    Main Characters


  • Jacob Lee (voiced by Josh Duhamel) – The protagonist, a hardened cargo pilot with a mysterious past. He is resourceful and driven by survival, but initially reluctant to trust others.

  • Elias Porter (voiced by Sam Witwer) – A fellow survivor and former UJC security officer. He becomes Jacob's ally, providing information and help throughout the prison.

  • Dani Nakamura (voiced by Karen Fukuhara) – A disgraced UJC auditor who is determined to expose the corporation's dark secrets. She guides Jacob via radio and later becomes a key figure in the story.

  • Captain Leon Ferris (voiced by Jess Salgueiro) – The brutal warden of Black Iron Prison. He is the primary antagonist, obsessed with order and control.

  • Dr. Caitlyn Mahler (voiced by Kristin Lehman) – A geneticist who conducted unethical experiments on prisoners, leading to the outbreak.


  • Core Appeal


    The Callisto Protocol offers a visceral, unrelenting survival horror experience with a heavy emphasis on close-quarters combat. Players must master a unique dodge-and-strike system, using a combination of melee weapons (like the stun baton) and a limited array of firearms. The game is designed to keep players on edge with limited ammo, oppressive environments, and gruesome enemy designs. The high-fidelity graphics, ray tracing, and 3D audio (especially on next-gen consoles and PC) create an incredibly immersive, terrifying atmosphere.

    Target Audience


  • Primary: Fans of survival horror and third-person action games, particularly those who enjoyed Dead Space, Resident Evil 7/8, or The Evil Within.

  • Secondary: Players looking for a cinematic, story-driven single-player experience with high production values and a focus on tension and gore.

  • Age Rating: Rated M for Mature (ESRB) / 18+ (PEGI) due to intense violence, gore, and strong language.


  • Game Modes


  • Single-Player Campaign: The main story mode, lasting approximately 10–12 hours on a first playthrough. Players progress through linear chapters, fighting enemies, solving environmental puzzles, and uncovering story logs.

  • New Game+: Unlocked after completing the main campaign. Allows players to replay the story with all previously unlocked weapons, upgrades, and collectibles.

  • Contagion Mode (Post-Launch Update): A harder difficulty setting with permadeath (save file deletion upon death) and limited resources, offering a true survival challenge. Available as free DLC.

  • Hardcore Mode (Post-Launch Update): An extreme difficulty mode with tougher enemies, reduced checkpoints, and no auto-saves. Also free.


  • Online/Offline Support


    The Callisto Protocol is strictly a single-player offline experience. There is no multiplayer, co-op, or online component. An internet connection is required only for initial download, patches, and optional achievements/trophies.

    DLC / Expansion Overview


    Three major DLC packs were released:
    1. Contagion Bundle (Free, February 2023) – Adds Contagion Mode, a new harder difficulty, plus three exclusive player skins.
    2. Riot Bundle (Paid, March 2023) – Includes Riot Mode, a wave-based survival arena challenge where players fight endless enemies for high scores, along with 12 new enemy types and new weapons (the Kinetic Hammer). Also includes new skins.
    3. Final Transmission (Paid, June 2023) – A story expansion that takes place after the main campaign. Jacob receives a distress signal and must descend further into Black Iron Prison to reach a mysterious new character. This DLC adds new environments, enemies, a gravity gun-like weapon (the "GRP" upgrade), and multiple endings, wrapping up the narrative.

    What Makes This Game Unique?


  • Melee-First Combat: Unlike many survival horror games that emphasize ranged combat, The Callisto Protocol forces players to engage in tense, rhythmic melee duels. The dodge-and-strike system requires precise timing, making every encounter feel like a deadly dance.

  • Gore System: The game features a hyper-detailed gore and dismemberment system. Enemies can be blasted apart limb by limb, and Jacob's own body shows visible damage, including wounds that affect gameplay (e.g., crawling with a broken leg).

  • Immersive Presentation: The game uses full facial animation (utilizing the same tech from Star Wars: The Clone Wars), ray-traced lighting, and HDR support to create a photorealistic, horrifying world that rivals AAA cinematic experiences.

  • Lore Integrations: The Callisto Protocol is set in the same universe as PUBG: Battlegrounds, with subtle references (e.g., a UJC logo on equipment) linking the two games—a unique cross-franchise connection.

  • No HUD Minimalism: The game intentionally hides most UI elements, including health and ammo counters, forcing players to rely on visual and audio cues (like Jacob's breathing or the glow of a healing injector).


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This introduction covers the essential aspects of The Callisto Protocol and provides a solid foundation for players new to the game.