
Nuclear Reactor Simulator: Take Control. Prevent Disaster. Power the World.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.29/day in the week to Aug 24 → 0.29/day in the week after.
Reviews, worldwide (the counter carries no country): 0.57/day in the week to Jul 20 → 0.5/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Welcome to Nuclear Reactor Simulator, where you step into the shoes of a nuclear power plant operator tasked with managing one of the most complex and dangerous systems on Earth. With the help of your AI-powered Operational Assistant (AO), you’ll navigate the intricacies of reactor mechanics, balance energy production, and prevent catastrophic failures.

This isn’t just a game—it’s a deep, immersive simulation that challenges your strategic thinking, problem-solving skills, and ability to stay calm under pressure. Whether you’re a seasoned simulation enthusiast or a curious newcomer, Nuclear Reactor Simulator offers a thrilling and educational experience like no other.
Control Every Aspect: Manage over 200 parameters and 150 switches across multiple reactor modules, including the Control Room, Containment Building, Turbine Building, and Cooling Towers.
Dynamic Systems: Monitor and adjust reactor power, coolant flow, steam generation, and more to maintain optimal performance.
Emergency Scenarios: Respond to unexpected events like equipment failures, floods, and fires with quick decision-making and precise actions.

Operational Assistant (AO): Your AI companion helps with ignition protocols, alarm systems, and crisis management. Upgrade its skills to unlock advanced functionalities.
Remote Control: Use your tablet to manage reactor tasks, control AO, and oversee operations from anywhere in the plant.
Daily Objectives: Meet energy production goals to earn Prestige and Experience Points. Level up to unlock more challenging scenarios.
Resource Management: Balance fuel consumption, maintenance costs, and community demands to keep your plant running efficiently.
Prestige System: Spend Prestige Points on upgrades, fuel blocks, protective gear, and even radioactive waste cleanup.

Enhanced Core Design: Operate a state-of-the-art reactor with nine fuel blocks, 72 control rods, and advanced safety systems.
Chemical Module: Dive into the chemistry of reactor operation with boric acid dosing, ion exchange filtration, and pH management.
Thermal and Steam Balance: Master the delicate equilibrium between steam generation, coolant flow, and energy output to avoid system failures.
Realistic Soundtrack: Feel the tension and excitement of managing a nuclear power plant with an atmospheric soundtrack.
Detailed Environments: Explore every corner of your plant, from the Control Room to the underground maintenance tunnels.

Nuclear Reactor Simulator stands out with its unparalleled depth and realism. Unlike other simulation games, it doesn’t hold your hand with step-by-step tutorials. Instead, it empowers you to learn through experimentation, research, and community collaboration.
No Hand-Holding: Consult the in-game manual, research real-world reactor operations, or join the community to master the game’s mechanics.
Constantly Evolving: Regular updates introduce new features, improve realism, and refine gameplay based on player feedback.
Educational Value: Learn the science behind nuclear energy while having fun.
Thrilling Challenges: Every decision matters. Will you prioritize power output or safety? Can you handle the pressure of an emergency?
Endless Replayability: With dynamic systems, evolving challenges, and a community-driven learning curve, no two playthroughs are the same.
A True Simulator: This isn’t just a game—it’s a realistic, hands-on experience that will test your skills and keep you coming back for more.

Become part of a growing community of players who share tips, strategies, and stories of their reactor operations. Whether you’re looking for advice or want to show off your achievements, there’s a place for you in the Nuclear Reactor Simulator community.
Step into the Control Room, fire up the reactor, and see if you have what it takes to power the world—or risk a meltdown. Nuclear Reactor Simulator is waiting for you.

Engagement
Reviews
Themes across 89 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
its fun and you need to manege the core.
Dieses Spiel ist sehr schön. Ich wünsche mir in den zukünftigen Updates dennoch, dass dieses Spiel einen Multiplayer mit 2 Spielern erhält. Auch wünsche ich mir, dass der Spieler schwimmen kann, um AO aus dem Wasser zu befreien. English: This game is very nice. Nevertheless, I wish vor future updates that this game will receive a multiplayer with 2 players. I also wish that the player can swim to free AO from the water, that he can dry. Best regards, Thrakoss
я ели как нашёл как включить Русский язык
Media

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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, Spanish - Latin America, German, Russian, Ukrainian*languages with full audio support
Hours played at review time, across 89 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Very good
Pretty negative impression for me. Every time you need to adjust the graphics settings, the game needs to restart. For this game in particular, that means restart steam and log back in, every time. The stop service doesn't work and task manager cant identify it. Strange, right? If you die in the game and go to menu, and start a new game, the WASD and look around controls no longer seem to work. I am a sucker for these power management games, they're highly intriguing. Being able to harness electricity and get paid for it. Being able to see the problem through lights and gauges, all pretty awesome stuff. Unfortunately, I can't recommend it if accessing the game is gonna be a pain in the cheeks, every time. I'd improve it later on if the next patches get this game in a better working order. I can understand where the dev is coming from though, has a family and other responsibilities. Nevertheless, this may not be fixed for some time. Seriously though, really good concept.
i dont understan but you can detonate the reactotr big boom
last time i played this game everything went perfectly fine and the reactor was running well this time for some reason several machines refused to work properly so i blew it up (not accidentally) ...and then somehow died of radiation damage while riding the evacuation tram just a few seconds before the evacuation was finished despite wearing hazmat
since last updates the game is laggy ad hell. Also, the arcady gameplay just got worse.
Really fun! A great game for those Human Factors / Engineering nerds like me! Tutorial could use some work. The problem isn't the knowledge you start the game with on nuclear power, its adjusting to the control panel layout, and the steps required for this specific powerplant.
Классная игра! Надеюсь мультиплеер выйдет в полном формате
Players by region
Where this game's players are, estimated from review languages.
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