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newvs 24h ago · updates every minute
Last 7 days · history since Nov 1, 2026
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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66% positive of 6 · 6 user reviews · Live from Steam
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Free on Steam. The demo has its own app, so its players are counted separately.
Happy Nuclear is an evidence-based investigation game where players act as detectives to prevent a disaster. They analyze interconnected case information on an investigation board, primarily using old CCTV and access logs. Cases link together at the end, and each replay introduces changes.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 66% on 2026-11-01 → 66% today (6 reviews)
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Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
We've received reports about an issue where floorplans automatically pull tokens to unwanted positions when loaded, which ends up destroying the progress players have worked hard to build. Originally, this feature was designed to make things easier by letting …
Bug Fixes: Fixed an issue where cases would not randomize properly when the player restarted the game
V 0.2.7 Fixed unclear English translation in the tutorial section Added hotkeys for quick access: Press 'Q' to open logs, 'W' to open CCTV
Fix token spawning in wrong position.
Add SFX and BGM options Fix some SFX not syncing with input