Just how long is The Callisto Protocol? Striking Distance Studio’s story-driven sci-fi horror is relentless, and you can expect setbacks at every turn as you escape Black Iron prison. As you stumble from one bloody confrontation to another in the game’s many chapters, you may start to wonder, ‘how long is The Callisto Protocol, anyway?’
The Callisto Protocol spans eight chapters, taking roughly 12-14 hours to complete. If you’re adamant about searching every dark corner on Callisto, you might find it takes you a tad longer – especially if you’re dead-set on uncovering the mystery of The Callisto Protocol Kallipolis while you’re at it. The Callisto Protocol is very linear, so subsequent playthroughs shouldn’t take anywhere near as long… unless you’re playing on Maximum Security difficulty, where additional deaths begin to stack up in one of the best PC games of 2022.

The Callisto Protocol chapters
There are eight chapters in The Callisto Protocol, each of varying lengths:
- Cargo
- Outbreak
- Aftermath
- Habitat
- Lost
- Below
- Colony
- Tower
There, you have it; that’s how long The Callisto Protocol is. If you’re eager to reach the credits, it’s worth checking the status of The Callisto Protocol new game plus. On the other hand, we’ve got the locations of all the Callisto Protocol weapons and a selection of the best Callisto Protocol upgrades to refine their performance.
Alternatively, we have some handy tips for navigating the trickier situations that one of the best horror games of 2022 throws at you, such as how to kill the two-head boss in Callisto Protocol and how to save the trapped worker during your trek across Callisto.