About the Game
It’s a quiet Sunday morning. You're relaxing in your backyard when it suddenly hits you:
You need to build an atomic bomb.
Naturally.
In this absurd single-player simulation, your peaceful suburban life takes a wild turn as you attempt the most questionable DIY project imaginable. Building a nuclear bomb in your backyard might not be the hardest thing you’ve done but it’s definitely the weirdest.
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What You’ll Be Doing
To complete your creation, you’ll need to:
Raise funds via a chaotic mini-game that tests your charm and hustle.
Go shopping: Bid on auctions and scour regular online stores for those oddly specific blueprint parts.
Do the math: Turn everyday household objects into actual atomic equations.
Extract critical materials from totally unrelated household items.
Assemble everything with precision... or at least, something close to it.
Handle your nosy neighbors, who are just a bit too curious.
Avoid IRS scrutiny, because spending your fundraiser money on plutonium raises red flags.
Manage your stress using strange and increasingly unhinged coping mechanisms.
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The Goal
The game is split into three major stages of building, each bringing its own unique challenges that will test your patience. Complete all three to finish your project ideally without any accidents along the way.
Disclaimer:
Some elements in this game are inspired by real-world nuclear formulas. Do not try this at home. Do not be inspired. Seriously.
Estimated Playtime:
30–183 minutes
Screenshots
12 images
Version Information
Steam Patch Notes
Official update history
Achievements are now live!
Also planning to add more achievements in the future based on your feedback and suggestions.
Hi everyone, thanks again for all your feedback! Almost all reported bugs have been fixed.
Here are some of them:
Added extra instructions/guides to clear up confusion around crafting RDX.
Fixed the Slickstarter issue in stage 3 where it wasn't working
Fixed the aluminum bar box that loves wandering around
Improved the stability of small items in the wheelbarrow.
Fixed orders spawning/falling outside in the front yard.
Fixed the Slickstarter stage 3 issue where it wasn't working for some players.
Tweaked and improved the stress levels.
Fixed some translation errors.
Tweaked and improved the stress levels.
Also, remember that you can fix most issues by pressing the button upstairs to reset your current stage. Still, I’m pushing updates to make sure you get a seamless playthrough. If you find any more bugs, please report them in the Discussions or on our Discord channel I'll try to fix them as fast as possible.
ADDITIONAL NOTE: If for some reason you want to delete your save files, spam-click the lawnmower icon 30-40 times.
Patch Notes
First of all, thank you so much for your bug reports and feedback they have been incredibly helpful! All bugs reported so far have been fixed.
Here are some of the key fixes:
Fixed translation errors in Stage 2.
Fixed explosive plates not being deployable.
Fixed photo mode being blocked in Stage 2.
Added missing instructions.
Fixed funding not deducting from the balance.
You can now check the Demon Core mass before placing items.
Tweaked the wheelbarrow so it doesn't love flying so much anymore.
Fixed explosive plate materials vanishing when put into the wheelbarrow.
Fixed the lag/FPS drops caused by the aluminum bar crate.
Plus a few other minor bug fixes and stability tweaks.
Fixed the jiggly boxes.
Reduced the movement of small objects inside the wheelbarrow.
Current Release
23726255
Uploaded Jun 14, 2026
System Requirements
How to Install
Atomic Bomb.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
4.2 GB
23726255
E886C2AC
7d301019258fdf24a066a7714206a35b15ecd0f1ae01f1eed3f95adab6a3363c
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