When was Nuclear Design Bureau last updated on Steam?

The last update for Nuclear Design Bureau on Steam (patch note or public build) was on Oct 17, 2026. The most recent developer announcement was posted on Oct 17, 2026.

How long has Nuclear Design Bureau been in Early Access?

Nuclear Design Bureau entered Steam Early Access on Sep 15, 2026 and has been in Early Access for 1 month (36 days).

Will Nuclear Design Bureau leave Early Access?

The developer (Design Bureau KB-11) hasn't announced a confirmed 1.0 graduation date via structured Steam store metadata. Check the latest community announcements below for roadmap milestones.

Nuclear Design Bureau Steam header capsule

Steam AppID #4190240·Developer: Design Bureau KB-11·Publisher: Design Bureau KB-11

Is Nuclear Design Bureau Abandoned?

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.

View on Steam Store ($9.99 USD)#simulation #strategy #physics #science #sandbox #puzzle #2d #pixel-graphics #dark #difficult #destruction #historical #atmospheric #early-access #indie

ActiveActivity Score: 100 / 100

Last checked: Oct 23, 2026 (UTC)

Developer? Correct this page

Active — last game update shipped 6 days ago (Oct 17, 2026).

In Early Access

1 month

Since Sep 15, 2026

Current Players

—

Steam concurrent (no key)

Last Update

Oct 17, 2026

Patch or public build (lastShipAt)

Last developer post

Oct 17, 2026

Community announcement feed

Last Build Update

Oct 17, 2026

via steamcmd.net

Updates (Last 12m)

12 patches · 12 posts

Past 365 days

Steam Reviews

Very Positive (78%)

414 reviews

Why This Status? (Deterministic Signal Audit)

View full rule thresholds →

Shipped a game update 4 days ago (Oct 17, 2026).Signal Date: 2026-10-17
Last developer announcement posted on Oct 17, 2026 (4 days ago).Signal Date: 2026-10-17

36-Month Update Cadence Timeline

Monthly shipped patches vs. developer community posts for Nuclear Design Bureau (UTC)

Patches (8)Dev Posts (0)

Nov 23Nov 24Nov 25Oct 26

Recent Official Developer Announcements

Filtered strictly to official Steam Community Announcements (feed_type = 1), excluding third-party press articles.

Oct 17, 2026Patchnotes

Read full post on Steam

Hotfix 10/17/26

Oct 16, 2026Patchnotes

Read full post on Steam

Hotfix 10/16/26

Oct 15, 2026Update / Changelog

Read full post on Steam

Update "Helium"

Oct 2, 2026Patchnotes

Read full post on Steam

Hotfix 10/02/26

Oct 2, 2026Patchnotes

Read full post on Steam

Physics Patch 10/01/26

Sep 27, 2026Patchnotes

Read full post on Steam

Hotfix 9/27/26

Sep 27, 2026Patchnotes

Read full post on Steam

Update "Hydrogen" 09/26/26

Sep 22, 2026Patchnotes

Read full post on Steam

Experimental LID/Sparkplug branch is out

Is Nuclear Design Bureau still being developed?

Nuclear Design Bureau’s last public Steam update was Oct 17, 2026. The developer’s latest Steam post was on Oct 17, 2026 (patch notes). To judge for yourself, see How to tell if an Early Access game is abandoned.

Frequently Asked Questions About Nuclear Design Bureau

Is Nuclear Design Bureau abandoned?: Based on public Steam records, Nuclear Design Bureau's last default-branch update was Oct 17, 2026. Our status only measures public Steam activity, not private development.
When was Nuclear Design Bureau last updated on Steam?: The last update for Nuclear Design Bureau on Steam (patch note or public build) was on Oct 17, 2026. The most recent developer announcement was posted on Oct 17, 2026.
How long has Nuclear Design Bureau been in Early Access?: Nuclear Design Bureau entered Steam Early Access on Sep 15, 2026 and has been in Early Access for 1 month (36 days).
Will Nuclear Design Bureau leave Early Access?: The developer (Design Bureau KB-11) hasn't announced a confirmed 1.0 graduation date via structured Steam store metadata. Check the latest community announcements below for roadmap milestones.