Early Access
Is Nuclear Design Bureau still being updated?
Yes, it's still new to Early Access (launched Sep 14). Last updated today, with 13 updates so far.
Last checked Oct 22, 2026
Recently updatedAll recently updated games
About the game
Design. Simulate. Detonate. As a junior engineer at the Kurchatov Institute, you design atomic devices to satisfy the demands of the State. A hardcore physics game simulating hydrodynamics, neutron transport, and thermonuclear fusion.
- Indie
- Simulation
- Strategy
AI Generated Content Disclosure
The developer filed this on the Steam store page. It is not a guess by active.games.
This game uses AI-generated assets made during development. No AI content is generated during gameplay.
Update history
Recent updates
Oct 21, 2026 · Build
previousbuild branch build 26002876
Latest build time Steam reports for the previousbuild branch.
Oct 21, 2026 · Patch note
Hotfix 10/21/26 (opens in new tab)
Changelog: fixed the three hidden achievements never unlocking. They are now checked when you press RESET new icons for the 11 original achievements fixed Directive 1-3 getting stuck after a restart. board is saved as "Board from Proving Ground" fixed Skip on the Proving Ground timer step leaving the tutorial stuck fixed Sandbox refusing every shot after Di…
Oct 21, 2026 · Build
Public branch build 26100873
Latest build time Steam reports for the public branch.
Oct 17, 2026 · Patch note
Hotfix 10/17/26 (opens in new tab)
Changelog: fixed designs going missing from the clipboard history. Designs lost before this fix can't be brought back the game now keeps a copy of a save it can't read before it starts fresh fixed Selectable Yield shots not counting when the pit went off before the generator (Directives 5-27 and 5-28) the Workshop and the museum now keep a shot you end with…
Oct 16, 2026 · Patch note
Hotfix 10/16/26 (opens in new tab)
Changelog: fixed the tool options (like wall thickness or star lens rotation) disappearing after a shot. Going back from the 3D view now resets the shot challenges no longer count a shot forced past the "critical at rest" warning fixed a case where a challenge's report didn't open at RESET after its targets were met (Directive 4-7) fissile burnup no longer…
Questions
When was the last Nuclear Design Bureau update?
Nuclear Design Bureau last shipped a build on the previousbuild branch today (Oct 21, 2026).
How often does Nuclear Design Bureau update?
It got about 1 update per month so far. Nuclear Design Bureau entered Early Access less than three months ago, so it's too new to rate for update frequency.
Is Nuclear Design Bureau abandoned?
No. Nuclear Design Bureau only launched in Early Access on Sep 14, and it was last updated today, with 13 updates so far.
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