RU EN
Sign in

Nuclear Design Bureau

440 ratings
Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5
Screenshot 6
Screenshot 7
Screenshot 8

Description

WARNING! THIS GAME IS IN EARLY ACCESS. IT IS BUGGY AND COMPUTE HEAVY. PLAYERS MAY FACE POTENTIAL BUGS, FREEZES, AND CRASHES.

WHILE THIS GAME UTILIZES WEBGPU and ELECTRON, LINUX/PROTON/MACOS ARE NOT OFFICIALLY SUPPORTED YET.

THERE IS AN ACTIVE DISCORD COMMUNITY, PLEASE JOIN IF YOU'D LIKE TO PARTICIPATE IN ITS DEVELOPMENT.

NUCLEAR DESIGN BUREAU is a hardcore sandbox engineering game where you design and test nuclear devices.

You are a junior engineer at the Kurchatov Institute. The State gives you a target and a warehouse full of dangerous materials. Some directives limit what you are allowed to use. Your job is to build a device that does what the directive asks.

This game is built in the open. The campaign, the physics and the tools change based on what players build, where they get stuck, and what they ask for. That is the whole reason it is in Early Access.

- Receive a directive: Technical requirements and constraints, with material limits on some jobs.

- Measure it by hand: The criticality lab is first person. Set the core in its cradle, lower the beryllium reflector onto it, and watch the counter on the wall while the live k estimate climbs toward one. Push it too far and the dose lands on your hands, not on a number.

- Design: Paint materials straight onto the blueprint grid. Build the primary, the casing, and the supporting systems.

- Simulate: Hit the red button and run full detonation physics in real time.

- Refine: If it fizzles, fails, or wastes material, work out why and change it.

- Physics-Driven Simulation: Shockwaves, heat, radiation, and chain-reaction behavior are modeled in real time.

- Criticality Lab: A first person room where you handle the real parts. Live Monte Carlo k-effective, a wall counter that lags the way the instrument actually would, and radiation exposure that shows on the operator instead of in a readout.

- Detonation Viewer: Observe detonations as they unfold, with live visual feedback on blast behavior.

- Campaign Directives: Structured mission progression with technical goals and constraints.

- Sandbox Mode: Unlimited experimentation with full design freedom.

- Iterative Engineering Loop: Build, test, diagnose, and optimize.

EARLY ACCESS STATUS (CURRENT BUILD)

The current Early Access build is playable end to end and includes the core gameplay loop:

- Design -> Simulate -> Detonate -> Refine

- The criticality lab

- Sandbox mode

- Campaign directives

- Save/load systems with ongoing stability improvements

This is an active development build. Expect balance changes, physics work, and campaign iteration during Early Access.

EARLY ACCESS ROADMAP (SUBJECT TO CHANGE)

Physics and Simulation

- Refining the detonation viewer (better shockwaves, damage radius and thermal radiation modeling, destructible buildings and targets)

- Finer grid resolution for stronger PCs and GPUs

- More to do in the criticality lab

Campaign and Content

- Expanding the campaign with unique challenges

- Many more directives/missions

- Voiced campaign

- Additional bomb concepts (high-radiation designs, clean bombs, neutron bombs)

- More advanced materials

Presentation and Audio

- More music tracks

Community and Meta

- Public leaderboard

- Statistics on every campaign directive, so you can compare how efficient your design was against everyone else's

DEVELOPMENT APPROACH

Design. Simulate. Detonate.

Early Access is where this game gets shaped in public. What players build, where they get stuck, and what they ask for decides what gets worked on next. Most of the day to day happens on Discord.

"The atom is not a soldier, Comrade. It is a force of nature. We merely tell it where to go."

System requirements

WINDOWS:

Minimum:
  • OS: Windows 10 64-bit (version 1903 or later)
  • Processor: 8-core, Intel i7-10700 or AMD Ryzen 7 3700X
  • Memory: 16 GB RAM
  • Graphics: GeForce RTX 3070 or Radeon RX 6700 XT, 8 GB VRAM, WebGPU support
  • DirectX: Version 12
  • Storage: 3 GB available space
  • Sound Card: DirectX Compatible
  • Additional Notes: Requires up-to-date graphics drivers with WebGPU support. Integrated graphics are untested. Large designs run slowly at the minimum. Display: 1280 x 720.
Recommended:
  • OS: Windows 10 or 11 64-bit
  • Processor: 8-core, Intel i7-12700 or AMD Ryzen 7 5800X
  • Memory: 32 GB RAM
  • Graphics: GeForce RTX 4070 or Radeon RX 7800 XT, 12 GB VRAM
  • DirectX: Version 12
  • Network: Broadband Internet connection
  • Storage: 3 GB available space
  • Additional Notes: Requires up-to-date graphics drivers with WebGPU support. Integrated graphics are untested. Display: 1920 x 1080.

Similar games

60% cheaper than Steam
Terra Firma 2

$7.94

+3 bonuses for this purchase

Terra Firma 2

Open
55% cheaper than Steam
The Escapists 2

$12.23

+4 bonuses for this purchase

The Escapists 2

Open
54% cheaper than Steam
JOY OF PROGRAMMING - Software Engineering Simulator

$8.19

+3 bonuses for this purchase

JOY OF PROGRAMMING - Software Engineering Simulator

Open
48% cheaper than Steam
Bionic Bay

$10.39

+4 bonuses for this purchase

Bionic Bay

Open
48% cheaper than Steam
Substrate: Emergence

$4.76 $6.80-30%

+1 bonus for this purchase

Substrate: Emergence

Open
77% cheaper than Steam
Kaizen: A Factory Story

$3.41 $4.55-25%

+1 bonus for this purchase

Kaizen: A Factory Story

Open
56% cheaper than Steam
Meco Rocket Simulator

$21.65

+8 bonuses for this purchase

Meco Rocket Simulator

Open
60% cheaper than Steam
The Escapists

$10.39

+4 bonuses for this purchase

The Escapists

Open
50% cheaper than Steam
World of Contraptions

$5.01

+2 bonuses for this purchase

World of Contraptions

Open
35% cheaper than Steam
Sand:box

$0.97 $1.29-25%

Sand:box

Open
34% cheaper than Steam
The Bibites: Digital Life

$6.60

+2 bonuses for this purchase

The Bibites: Digital Life

Open
50% cheaper than Steam
Bridge Constructor Portal

$5.01

+2 bonuses for this purchase

Bridge Constructor Portal

Open
27% cheaper than Steam
Sandboxels

$0.72

Sandboxels

Open
77% cheaper than Steam
SpaceChem

$2.31

SpaceChem

Open
53% cheaper than Steam
Comet 64

$7.09

+2 bonuses for this purchase

Comet 64

Open