Early Access Games

Nuclear Design Bureau has been in Early Access on Steam for 2 months, since Sep 15, 2026. The last update to Nuclear Design Bureau was posted 9 days ago (Nov 5, 2026), one of 19 in the past 90 days. Updates to Nuclear Design Bureau arrive about every 2 days over the past year. Nuclear Design Bureau peaked at 63 players in the last 24 hours.

In early access2 monthssince Sep 15, 2026
Last update9 days agoNov 5, 2026
Updates, 90 days19about every 2 days
Players, 24-hour peak63
Positive reviews79%of 448
Price$9.99

Update activity, past year

Fewer More

A year ago19 updates in the past yearThis week

Nuclear Design Bureau screenshot 1Nuclear Design Bureau screenshot 2Nuclear Design Bureau screenshot 3Nuclear Design Bureau screenshot 4Nuclear Design Bureau screenshot 5Nuclear Design Bureau screenshot 6

Is Nuclear Design Bureau still being updated?

Yes. The last update to Nuclear Design Bureau was posted 9 days ago, on Nov 5, 2026. Over the past year updates to Nuclear Design Bureau have come about every 2 days.

  1. PatchHotfix 11/5/26 b
  2. PatchHotfix 11/5/26
  3. PatchHotfix 10/30/26
  4. PatchHotfix 10/25/26
  5. PatchHotfix 10/23/26
  6. PatchHotfix 10/22/26
  7. PatchHotfix 10/21/26
  8. PatchHotfix 10/17/26
  9. PatchHotfix 10/16/26
  10. Major updateUpdate "Helium"

How long has Nuclear Design Bureau been in early access?

Nuclear Design Bureau entered Early Access on Steam on Sep 15, 2026 and has been in it for 2 months.

How many people are playing Nuclear Design Bureau?

Nuclear Design Bureau peaked at 63 players on Steam in the last 24 hours.

What is Nuclear Design Bureau?

Steam users tag Nuclear Design Bureau as Simulation, Strategy, Physics, Cold War and Science. Nuclear Design Bureau is single-player only and priced at $9.99, and 79% of its 448 Steam reviews are positive.

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.

How Design Bureau KB-11 describes it on its Steam store page, which also has the developer's own answer on how long it expects to stay in early access.

Browse related lists

Early access games that are still being updatedSingle-player early access gamesEarly access games under $10Early access games under $20Early access simulation gamesEarly access strategy gamesEarly access sandbox games

Steam tags: Simulation, Strategy, Physics, Cold War, Science, Sandbox, Puzzle, 2D, Pixel Graphics, Dark.

StatusActive
Early access sinceSep 15, 2026
Last updateNov 5, 2026
Typical gap2 days between updates
Playing now45 (Nov 14, 23:49 UTC)
7-day peak63
Steam reviews79% positive of 448
Price$9.99
PlaySingle-player
Steam DeckUnsupported
PlatformsWindows
DeveloperDesign Bureau KB-11
PublisherDesign Bureau KB-11

Early access games like Nuclear Design Bureau

Last updated . Data from Steam, refreshed daily; prices in US dollars. How it is counted.