Marvel's Guardians of the Galaxy is one of the few single-player games out there. There are no live services or DLCs in the game, so when someone is done, they are truly done. Since there are only 16 chapters in the game, and each chapter can be completed in an hour, it will take players a bit over 16 hours to finish the game if they're fast.
Really, I'd say about 16-23 hours total if you do a bit more or are a completionist.
It is not to say that this will always be the case. Many players like to roam around, search for secrets, and take in the sights. As a result, they may have a much broader experience than someone who rushes through the game.
Related: How many chapters are in Marvel’s Guardians of the Galaxy?
Furthermore, the difficulty of the task may also affect how long someone may spend on it. To be safe, we will use our average number of 16 hours, although your time will definitely vary in how you play the game.
Components make the game a lot more fun and easier if you take the extra time per chapter. Players can gather many components by looking around.
For more info on Marvel's Guardians of the Galaxy game, check out Is All perks in Marvel’s Guardians of the Galaxy on Pro Game Guides!
