Based on the lore of the 2017 tabetop RPG Cold Start, The Callisto combines the puzzles of an escape room with an interactive storyline and deep lore, and a dynamic puzzle system to make each playthrough unique.

At a luxury hotel on Jupiter's second-largest moon, a political figure was murdered along with three others. The player investigates the crime scene, collects evidence, and remotely interviews witnesses with the aid of a Regional Advisory Contact (REGAC).

With the crime scene empties, you—a member of an interstellar police force—are the investigator of these deaths. Collect evidence, interview witnesses, analyze clues, and solve puzzles to uncover the secrets behind the events leading up to this crime. Discover The Callisto's seedy history, explore the staff and guests' backroom connections, and learn about the underground financiers of this remote paradise on the cold surface of a moon.

The developers take inspiration from several investigation games such as Firewatch and The Return of the Obra Dinn, while also naming Half Life: Alyx developer Robin Walker as a major influence on the game’s environmental and character storytelling.

GIB Games released a new trailer for its upcoming VR title, The Callisto, showcasing its high-fidelity graphics and mysterious, futuristic setting and included many moments from gameplay.

The trailer also named some of the talent lending voices to the murder mystery adventure, including John McPhee and Jason Kearney as the game’s protagonist duo. Also named among the talent was Jon St. John, a veteran voice actor best known as the voice of Duke Nukem in the popular game franchise of the same name. St. John has also been involved in other popular video games including Postal 4 and Sonic Adventure.

The Callisto is coming to PC (Steam) in Spring 2022.