Summary
- Atomfall offers plenty of optional side content to explore after completing the core narrative, with hidden batteries, guns, collectibles, skills, and achievements to discover.
- Leveling up every gun, finding every collectible, unlocking every skill, and following every lead adds depth and challenge to the game post-completion.
- Exploring every cave, getting every ending, and completing all regions contribute to a comprehensive gaming experience in Atomfall, offering multiple endings and various challenges to overcome.
In spite of how big Atomfall feels at times, it’s actually a pretty modest game length-wise, and you can beat it in less than ten hours without trying too hard. However, just because you can beat the game quite quickly, that doesn’t mean that there isn’t plenty to do.

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8 Best Easter Eggs And Hidden Details In Atomfall
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Even though the core narrative of Atomfall isn’t too long, the game is built up and supplemented by a bevy of optional side content that adds personality to it’s world. So, if you’ve reached the credits of Atomfall, but want to do even more, what is there to look out for?
8
Find Every Atomic Battery
Excessive Power
After you first enter the Interchange, you quickly realize that a large chunk of Atomfall’s main story revolves around collecting Atomic Batteries to power up the Interchange so you can finally reach the elusive Windscale Plant.
However, something you’ll quickly notice is that there are far more than just the four Atomic Batteries you’ll need to complete Atomfall hidden around its world. Keeping an eye out for each of these batteries is a fantastic extra goal to aim for after you’ve beaten the game.
7
Level Up Every Gun
Immaculate Armory
With how limited the inventory is in Atomfall, you’ll likely miss out on collecting certain guns, especially if you don’t have the room to carry them. This can make leveling up each of your weapons a tough challenge, since getting the duplicates you need requires strict and organized inventory management.
This makes finding every gun and using gun oil to level them up to pristine condition a tough goal with the reward of making your character significantly more powerful. Some weapons are only found in certain locations, and you’ll need doubles to rank them up, so completing your armory is no simple task.
6
Find Every Collectible
Metal Detector Aficionado
If you explore Slatten Dale precisely enough, you’ll come across the metal detector quite early. This item will ping whenever it’s in the range of something you can dig up, and it’s a fun extra minigame to get extra materials and sometimes even recipes.
Some of these metal-detected caches are inside collectible lunch boxes, and there’s a certain number of these to collect as a fun retro Easter egg. On top of this, there’s also a whole fictional comic series to keep an eye out for when exploring as well.
5
Unlock Every Skill
As Powerful As Can Be
Atomfall takes a very unconventional approach to leveling up your skills. Some skills can’t be learned until you find a training manual that will let you unlock a certain class of skills, and some are locked behind quest lines with different NPCs.
This makes gaining access to having the option to just unlock skills a challenge in itself, and then it’s a case of collecting enough Training Stimulant to actually activate them. Filling out your skill index is a tough challenge, and by the time you complete the game you likely haven’t even got half of them, so it’s a perfect postgame challenge.
4
Achievement Hunt
All There Is To See
Atomfall, like most modern games, has active achievement support, and while you’ll likely unlock a handful of these along the main path of the game, there’s plenty that are easy to miss.
Achievements like High Tea will require careful planning, and for Orna Mental you’ll need to explore certain locations closely. There are also plenty of combat achievements that need mastery of Atomfall’s gunplay, and some achievements will even need a dedicated run like Quick Exit, which requires reaching credits in under five hours.
3
Follow Every Lead
Ace Detective
To get to the end of Atomfall, you’ll probably have followed plenty of different leads and clues to completion to create your own web of logic and finally (hopefully) escape the Quarantine Zone. However, to get there, you’ve probably ignored just as many clues as well.
There are some leads that you’ll have to fail to succeed with others, making it impossible to see everything in one playthrough. Because of this, you can do a whole other playthrough to make other choices, or at the least, complete any straggling leads you have after beating the game.
2
Complete Every Cave And Bunker
Anyone In Here?
In each of Atomfall’s different regions, there’s a handful of mini dungeons in the form of bunkers and caves that will have you either sneaking, fighting, or a mix of the two, to get to the loot that is inevitably hidden at the end.
Some of these are pretty well hidden, and you might have actively ignored some of them thanks to not having the right skillset upon initially discovering them. Because of this, you’ve probably not completed all of these areas before finishing the game, and some of them are an enjoyable challenge to return to when you’re empowered with your postgame artillery.
1
Get Every Ending
Strategic Saving
With how many different leads and plot threads Atomfall contains, it’s only right that the game has a few different endings. There are six different endings you can get upon completing Atomfall, and each will require befriending and allying with certain NPCs and factions.
You can usually get different endings quite easily by simply reloading your save before making the final choice and simply going a different way. However, others will require some more active rewinding. For example, keeping both Dr Garrow and Dr Holder on your side in the same playthrough is pretty tough, so to get both of their endings you’ll need to put in some serious effort, and potentially create a whole new save.

- Released
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March 27, 2025
- ESRB
-
Teen // Blood, Language, Violence
- Number of Players
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1
- Steam Deck Compatibility
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Unknown
- PC Release Date
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March 27, 2025
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