Screenshots
Watch trailer on Steam ↗Nuclear Sub
Games Incubator, Mobilway S.A. · Published by PlayWay S.A., Games Incubator · Official site ↗
Last updated 27 Sept 2026
A realistic nuclear submarine simulator will allow you to take command of your crew and battle your fiercest enemies. Arm yourself with missiles, dive into the ocean and fight for your country
Free
Action, Indie, Simulation, Strategy · 2026 · More free games
Take command of a realistic nuclear submarine and engage in intense action-packed missions. Navigate through the ocean depths while Mobilway S.A.'s simulation challenges you to strategize and survive against formidable foes.
About this game
Dive into the unique story of the nuclear submarine crew. The government sends its best armed and best tactically prepared undersea crew to face hostile units in the far depths of the cold North.
It seems that everything is already in place that would be needed for success, an excellent crew, a great ship, the only thing missing is a person who has the tactical sense to handle naval battles. You need to control the morale of the sailors, manage weapons and food supplies, and constantly check the technical condition of the submarine, especially its nuclear reactor. Will you prove yourself in this role?
Manage basic resources such as indoor oxygen levels and the correct functioning of the nuclear reactor. Monitor the availability of electricity and check if navigation and mechanical systems are working properly. The better the condition of the ship you provide, the happier the sailors will be and the more efficiently they will perform their tasks. Remember to keep morale high, but also don't forget the realistically represented hierarchy on the submarine directly contributes to maintaining order among the crew.
When going to deep waters with a nuclear submarine, you must remember to control its propulsion. A nuclear reactor requires constant attention and checking of its technical condition. If a malfunction occurs, close off the relevant parts of the ship to cut off damaged or flooded sections.
Explore the oceans of the open world, looking out for enemy units. Complete missions assigned by your superiors and assign tasks to your subordinates. Destroy enemy ships and raise the morale of your crew. A wide range of Cold War missile selections will allow you to win any battle of the many planned scenarios, and an advanced ship damage system will make the gameplay even more realistic.
Features:
- cold, open world of the North
- model of a 3 decks nuclear ship with realistically replicated separate compartments
- manage 80 sailors in the crew, who, thanks to artificial intelligence, behave accordingly to the level of satisfaction and good condition of the ship
- realistic ship damage system will supplement the gameplay with the necessary realism
- a campaign consisting of 10 diverse main missions and 20 side missions based on real scenarios
- possibility to upgrade your ship and equipment, thanks to the money earned for correctly completed missions
- Control your mission from different levels of view: TPP, FPP, map
It seems that everything is already in place that would be needed for success, an excellent crew, a great ship, the only thing missing is a person who has the tactical sense to handle naval battles. You need to control the morale of the sailors, manage weapons and food supplies, and constantly check the technical condition of the submarine, especially its nuclear reactor. Will you prove yourself in this role?
Manage basic resources such as indoor oxygen levels and the correct functioning of the nuclear reactor. Monitor the availability of electricity and check if navigation and mechanical systems are working properly. The better the condition of the ship you provide, the happier the sailors will be and the more efficiently they will perform their tasks. Remember to keep morale high, but also don't forget the realistically represented hierarchy on the submarine directly contributes to maintaining order among the crew.
When going to deep waters with a nuclear submarine, you must remember to control its propulsion. A nuclear reactor requires constant attention and checking of its technical condition. If a malfunction occurs, close off the relevant parts of the ship to cut off damaged or flooded sections.
Explore the oceans of the open world, looking out for enemy units. Complete missions assigned by your superiors and assign tasks to your subordinates. Destroy enemy ships and raise the morale of your crew. A wide range of Cold War missile selections will allow you to win any battle of the many planned scenarios, and an advanced ship damage system will make the gameplay even more realistic.
Features:
- cold, open world of the North
- model of a 3 decks nuclear ship with realistically replicated separate compartments
- manage 80 sailors in the crew, who, thanks to artificial intelligence, behave accordingly to the level of satisfaction and good condition of the ship
- realistic ship damage system will supplement the gameplay with the necessary realism
- a campaign consisting of 10 diverse main missions and 20 side missions based on real scenarios
- possibility to upgrade your ship and equipment, thanks to the money earned for correctly completed missions
- Control your mission from different levels of view: TPP, FPP, map
System Requirements
Will my PC run this? →Minimum
Minimum:
- OS: Windows 10 / Windows 11
- Processor: Intel Core i5-6600 / Ryzen 5 1600
- Memory: 8 GB RAM
- Graphics: GTX 960 4gb VRAM
- DirectX: Version 11
- Storage: 11 GB available space
Recommended
Recommended:
- OS: Windows 10 / Windows 11
- Processor: Intel Core i5-8600 / Ryzen 5 3600
- Memory: 16 GB RAM
- Graphics: GTX 1660 Ti
- DirectX: Version 11
- Storage: 16 GB available space
Supported Languages
English*, Polish, French, Italian, German, Spanish - Spain, Simplified Chinese, Japanese, Korean, Portuguese - Brazil, Russian, Traditional Chinese, Turkish
*languages with full audio support
*languages with full audio support
Latest news
Patch NotesOfficial
DEMO Update 2.0.0
Hello Captains! 👋 Demo Update 2.0.0 is now available to download! ✅ First of all, we would like to thank all those who decided to leave their feedback, reviews and opinions regarding the demo version - it was incredibly important for us to know what needs to be improved and in which direction YOU 🫵 our players, want the game to develop - thank you for that! 🤝 Today, we are back with the first update to the demo version - 2.0.0 - which introduces many key changes, and most importantly, bug fixes that you reported to us after playing the demo version. You can find the full list of changes below, we sincerely encourage you to check out the demo version and leave your opinion after the fixes. 🫡 Additionally, remember that we are also working on a free Prologue to the game, which you can add to your wishlist now and click the follow button 👇 https://store.steampowered.com/app/3001790/Nuclear_Sub_Prologue/ Once again, thank you for every opinion and we encourage you to play the newest demo version! 🔥 📝 List of changes: - The game now saves progress. The player can load the game from the last checkpoint. - The tutorial mission has been completely redesigned. - Added shot prediction: - When the player wants to shoot down a moving ship, they must enter tactical view. - Enable the prediction panel. - Set the time. - During that time, they must perform the necessary actions to shoot down the ship. - Added reactor dashboard: - The player can control the reactor’s power level. - The reactor can overheat. - The player can perform an emergency shutdown. - All other ship systems consume X% of reactor power. - Manual steering dashboard: - Visual update. - The player can now manually steer the ship. - Enemy ships are visible on radar, and mines are visible on the magnetic anomaly detector near the dashboard. - Mines have been added – if the player hits one, they die. - Radio has been added: - The player can select a specific frequency. - Can communicate with the base. - Can eavesdrop...Read full article on Community Announcements (Games Incubator_Team)AnnouncementsOfficial
Tactical View
Hello Captains! 👋 Welcome back! It’s been a while since the last devlog because our main objective was to focus on and put into life as many key points from your feedback as possible. Today we’d like to showcase one of the very important mechanics during your gameplay -tactical view 👀 and tell you about some of the changes. {STEAM_CLAN_IMAGE}/43460543/e46659af5d2e038478aa76e11ff67e672d563552.png What is the tactical view? 🤔 Tactical view is the most detailed view available for the player of what’s going on around your submarine. It’s pretty versatile as it can allow you to see how close, or how far from the ship you can be to successfully tail it. 🤫 It’s also invaluable during the conflicts because when ships are in motion, you can use it to estimate and set predictions to where you and your opponent will be. 📝 This maneuver allows you to collect enough data to gain the edge and shoot down the enemy vessel. 💪 What’s more, this view doesn’t restrict your movement options in any way and you can keep controlling the speed, maneuvers and other steering features like you’ve always had. {STEAM_CLAN_IMAGE}/43460543/d7af7601f6c4ee0aff153fcdd3254763e6945fcf.png Improvements 📓 The demo release allowed us to understand much better what kind of game you’d like Nuclear Sub to become. That’s why we’ve put a lot of effort into improving various aspects of the game based on your feedback. The key features we’ve focused on thus far are as follows: -Reactor control commands: from now on you won’t have to make trips to the reactor to control it, -Time limited tutorial mission changes: We remade the time-limited tutorial mission which was a frustrating experience for many players. Now the tutorial is more slow-paced and allows you to take your time to learn the ropes, -Improved tactical view: you can now see circles which indicate the minmax distance you can keep during the tracking mission, -Subtitles during the crucial dialogs, -Improved shooting while units are moving. We hope that ...Read full article on Community Announcements (Dawid_GamesIncubator)AnnouncementsOfficial
Reactor
Hello Captains! ⚓ Today, we're excited to share details about one of the most critical mechanics that defines our game - reactor management. This system accompanies you throughout the entire gameplay, influencing every aspect of controlling your submarine. You'll soon realize that the reactor is not just a power source, but also a key element of strategy and survival in the depths. 🛠️ Reactor - How It Works? The reactor is the central element of the gameplay, powering all systems of your submarine. From speed to sonar and torpedo systems, even controlling noise emissions - everything depends on the reactor's power. Main reactor parameters: Reactor Power: 0% to 100% Core Temperature: Low, Normal, High, Critical Noise Level: Silent, Normal, Loud 🎛️ Player Controls As the captain, it's your job to manage the reactor and adjust its performance according to the situation at hand. Here's what you can control: Reactor Power Slider (from 0% to 100%): Adjust the energy output for the submarine's systems. Emergency Cooling Button: Quickly lower the core temperature in critical moments. Be mindful—uses are limited! SCRAM Button: Emergency shutdown of the reactor. Use only in dire situations, as it leaves the submarine without power. {STEAM_CLAN_IMAGE}/43460543/dbfd06730ecb9e881d2bd83038449481a1be0257.png ⚙️ Reactor Operating Modes Depending on the power slider setting, the reactor operates in one of three modes: Economic: Ideal for patrolling and staying hidden. Minimal energy usage, low noise levels. Standard: Balanced mode for efficient movement and system use. Full Power: Maximum output for emergencies like escaping or attacking. Be cautious of overheating! 🔥 Managing Temperature As you increase reactor power, the core heats up. You'll need to monitor the temperature and respond when it gets too high. Here's how you can manage it: Emergency Cooling: Use strategically when the temperature reaches "High" or "Critical" levels. SCRAM: Deploy this last-resort measure to shut dow...Read full article on Community Announcements (Dawid_GamesIncubator)AnnouncementsOfficial
🚨 Captains! - Play Demo Now! 🚨
Hello Players! 👋 We are happy to announce that the demo version of Nuclear Sub is a part of Steam Next Fest October 2024 Edition! 💪 You can play our demo right now! Just go to the Steam page, and you will see a green banner, hit the "Download" button and start your adventure! ⤵️ https://store.steampowered.com/app/2925640/Nuclear_Sub_Demo/ Play now and leave us some feedback, we really count on your suggestions and ideas. 😊 https://youtu.be/nbRh6p1VNJ0 Join our Discord👇 {STEAM_CLAN_IMAGE}/43460543/538bcac86a0ce3fc2a5a94e869ef452a1f35cad0.png Havbe fun! Nuclear Sub TeamRead full article on Community Announcements (Games Incubator_Team)Community & EventsOfficial
☢️ Nuclear Sub is part of the upcoming NEXT FEST!
Commanders! Prepare for your departure. We’ve got the latest order from the general and our next mission is to infiltrate Steam Next Fest: October 2024 edition. {STEAM_CLAN_IMAGE}/43460543/c5d5d5ef2a4f30c89e0279269baaf78233315232.png That’s right! Nuclear Sub is part of the upcoming Next Fest and for an entire week starting on October 14th at 7pm CEST you’ll be able to take on your first missions! 🤩 We wish you the best of luck during your operations and lots of fun with all the games taking part in the event! 💪 https://store.steampowered.com/app/2925640/Nuclear_Sub_Demo/ {STEAM_CLAN_IMAGE}/43460543/538bcac86a0ce3fc2a5a94e869ef452a1f35cad0.png Have fun! Nuclear Sub TeamRead full article on Community Announcements (Dawid_GamesIncubator)
