Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 4190240 |
| Live current players | 0 |
| SteamPulse tracked peak | 0 |
| Live count (today's peak floor) | 0 |
| Price | $9.99 |
| Free to play | No |
| Discount | 0% |
| Original price USD | $9.99 |
| Current price USD | $9.99 |
| Release date | Sep 14, 2026 |
| Developer | Design Bureau KB-11 |
| Publisher | Design Bureau KB-11 |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | Not available |
| Positive review percent | Not available |
| Positive reviews | 0 |
| Negative reviews | 0 |
| Total reviews | 0 |
| Steam recommendations | 227 |
| Achievements | 11 |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/4190240/ |
Short description
Design. Detonate. Survive. As the Chief Engineer of the Kurchatov Institute, you must design atomic devices to satisfy the demands of the State. A hardcore physics-based puzzle game simulating hydrodynamics, neutron transport, and thermonuclear fusion.
About this game
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. I UNDERSTAND THAT THE AI GENERATED CONTENT IS UNAPPEALING AND AM HEAVILY FOCUSED ON ADDRESSING THIS ISSUE. 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. HOW IT WORKS - 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. CORE FEATURES - 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…
Supported languages
English