How long is Atomic Heart, game length and time to beat

Atomic Heart screenshot PS5
(Image credit: Mundfish)

The Atomic Heart length and how long it takes to beat mostly depends on your own playstyle, with completion times potentially varying by up to 15 hours. Difficulty level and player skill will also play a big part here - Atomic Heart can be a challenging game due to its survival-oriented mechanics and hostile robots that are basically everywhere, so a certain amount of slow caution or forced restarts can really make a difference over time. For those who want to know what sort of time commitment you might be facing, here are the answers to the question of how long to beat Atomic Heart, with time estimates for critical path and completionist playstyles.

How long to beat Atomic Heart?

Atomic Heart

(Image credit: Mundfish)

Atomic Heart's length will vary, as mentioned, depending on your ambitions and desire to see the whole thing, but having played it through, here's our estimation.

  • Critical path (just the main story campaign): 13-18 hours
  • Standard playthrough (story plus some side activities): 15-20 hours
  • Completionist (100% story and all side activities): 30-35 hours

Obviously there's a fair amount of variation involved in these already varying numbers, as again - difficulty and player experience with action-packed survival will be a big factor, and the extent to which players engage with side activities can more than double the game's length. 

However, for those who have their heads down and just want to experience the main story at a full Atomic Heart sprint, you should have it done by 18 hours at most, maybe an outside chance at 20 if you keep getting lost in the overworld or killed by enemies. Otherwise, the standard player will probably reach a little longer than that, given some time to engage with side content, explore optional facilities and go looking for new blueprints and resources that'll enhance powers like your Atomic Heart telekinesis.

Of course, for those who still want to make an informed decision about whether the game is worth it, you can always check out our Atomic Heart review here. 

Joel Franey
Guides Writer

Joel Franey is a writer, journalist, podcaster and raconteur with a Masters from Sussex University, none of which has actually equipped him for anything in real life. As a result he chooses to spend most of his time playing video games, reading old books and ingesting chemically-risky levels of caffeine. He is a firm believer that the vast majority of games would be improved by adding a grappling hook, and if they already have one, they should probably add another just to be safe. You can find old work of his at USgamer, Gfinity, Eurogamer and more besides.

Read more
Kingdom Come: Deliverance 2 character Henry wounded
How long is Kingdom Come Deliverance 2?
South of Midnight hero image for Big Preview showing Hazel looking at a Bottle of contained memories
South of Midnight is "10 to 12 hours" long because its story unfolds within a single day: "There's a kind of urgency to it"
V in Cyberpunk 2077 with pink hair, wearing a suit and aiming a pistol on the side of the street.
How long to beat Cyberpunk 2077?
Avowed screenshot showing two companions assisting in combat
How long is Avowed?
Spider Man 2 how long length
How long to beat Marvel's Spider-Man 2?
Assassin's Creed Shadows screenshot showing a vast forested vista with Naoe perched on the end of a branch overlooking the view
How long to beat Assassin’s Creed Shadows?
Latest in Action
Assassin's Creed Shadows
As Assassin's Creed Shadows overtakes Valhalla and Odyssey, Ubisoft promises "this is just the beginning" in heartfelt thanks to players
Bethesda
Indiana Jones and the Great Circle's PS5 release looks like it might be revealed today as Bethesda teases an announcement: "Keep eyes here"
Yasuke looking over the water to a shrine during sunset in Assassin's Creed Shadows
Assassin's Creed Shadows has an entire island stuffed with adorable kittens you need to check out, and it's based on an actual Japanese cat paradise
Assassin's Creed Shadows review gameplay showing Yasuke overlooking the sea and lush green scenery
Assassin's Creed Shadows has already "surpassed the launches of AC Origins and Odyssey" with 2 million players and counting
God of War 3
God of War PSP's seamless loading was only possible because a Jak & Daxter game was also running in the background
MindsEye
GTA 5 veteran's new open-world game sounds like a mix of the wildest Roblox and Minecraft servers
Latest in Guides
FC 25
FC 25 Dreamchasers tracker and full UEFA promo guide
Assassin's Creed Shadows Naoe "justice must be served" or "killing them isn't justice" Yaya and Mistumune choice
Should you side with Mitsumune or Yaya in Assassin's Creed Shadows?
Pokemon TCG Pocket Shiny Cards
How to get Shiny Pokemon in Pokemon TCG Pocket
Assassin's Creed Shadows money naoe and merchant
How to get money in Assassin’s Creed Shadows
Pokemon TCG Pocket Shining Revelry
Pokemon TCG Pocket Shining Revelry release date and details
Assassin's Creed Shadows Naoe in outfit
Best Assassin’s Creed Shadows armor for Naoe and Yasuke