Screenshots
Watch trailer on Steam ↗How 2 Escape: Lost Submarine
Breakfirst Games · Published by Maximum Entertainment, Breakfirst Games · Official site ↗
Very Positive — 84% positive (200 reviews) · 28 achievements
Last updated 6 Oct 2026
Team up with a friend to reach a lost submarine and prevent the outbreak of war. Work together on two devices to solve increasingly challenging puzzles, where each of you has your own unique role to play. 2 players: 1 buys the game, the other uses the free Companion App
£10.99
Lowest price we've ever recorded
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Price history
Adventure, Indie, Simulation, Casual · 2025 · More £5 - £15 games
Explore a submerged mystery with How 2 Escape: Lost Submarine. In this casual adventure game, team up with a friend to navigate the challenges of a sunken ship, using distinct roles to unlock secrets and prevent an outbreak.
About this game
The unique co-op experience that made How 2 Escape a success is back with improved gameplay and new challenging puzzles!
The latest edition in the How 2 Escape series, How 2 Escape: Lost Submarine has you and a partner work together to locate a missing submarine and prevent the start of a global war.
SAVE THE WORLD
An important allied military base has been captured by enemy forces, prompting the government to preemptively order the launch of a torpedo to reclaim it - despite the potential for countless allied deaths.
However, after further internal discussions and negotiations with the enemy, the government cancelled the strike that could spark a potential global war. The only problem is "The Triumphant," the submarine carrying the torpedo, is out of communication range and no one can confirm if the cancellation orders have reached the submarine.
To prevent war, the government has tasked its two best experts, Haurée and Leroy, two strategic masterminds of the submarine fleet, to locate “The Triumphant” before time runs out and spread the latest information. These experts will face a reality they did not expect. Underwater, the startling torpedo decision broke out, igniting a moral dilemma among the sailors.
COOPERATE TO WIN - 2 players, 2 ways to play!
Put your communication and puzzle-solving skills to the test as you and a partner work together to prevent the start of war! Each of you has a crucial role to play that requires logic, coordination, observation and, above all, communication!
As player one, your job is to locate and investigate the inside of the submarine, where you’ll explore and interact with the environment.
Your friend is tasked with using the dedicated free companion app* to gather additional information so you both can solve the puzzles together.
*Get the free How 2 Escape: Lost Submarine Companion App on smartphone.
Features:
Co-op puzzle solving with a friend
Cross-platform plays on two devices
Only one copy of the game is needed (download the free companion app on PC or mobiles for the second player!)
Increasingly challenging puzzles
Simple controls
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: i3-5500 or more
- Memory: 4 GB RAM
- Graphics: GTX 660 or more
- Storage: 2 GB available space
Recommended
- OS: Windows 10
- Processor: i5-4440 or more
- Memory: 4 GB RAM
- Graphics: GTX 1650
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Summer and Feedback Update is Now Available!
Hi everyone, We hope you’ve been enjoying your underwater escape experience with friends and family so far! To start the week with some good news, we’re excited to roll out our first major “Summer & Feedback Update”, packed with bug fixes, many gameplay improvements, and new feedback systems to optimize your co-op interactions. Over the past weeks, our team has been closely watching players from around the world dive into the escape rooms we’ve designed with passion. Thanks to your streams, feedback, and messages, we've crafted a new patch aimed at enhancing the overall experience, and we can’t wait for you to try it.Plus, to celebrate, the game is 25% off until August 17!Scroll down for all the details included in the “Summer & Feedback Update 1.3.0”Gameplay Improvements & UpdateGlobalNew sound effects addedLocalization updates across various languagesMain GameYou can now invert the Y-axis when playing with a mouse or gamepadFor Chinese players: the intro QR code now redirects to a website that doesn't require a VPN to access the Companion AppNew feedback has been added when entering a code on a keypadRescue SubmarineLevers: Success feedback added. The machine now closes once the riddle is completedPeriscope: Improved collider to make switching between the keypad and the glasses smootherMachine RoomWater Puzzle: Adjusted visuals for portholes #2 and #3 to make them easier to identifyCanteenExtended timer by an additional 10 minutesCaptain’s CabinMap: Updated lighthouse and water tank icons to reduce player confusion Torpedo RoomMolecule Simulator: Poster updated for better clarity. A new validation button has been added to clarify keyboard interactionTorpedo Monitor:Added more visual feedback to show how many characters are needed per roundA numerical hint has been added to help solve the second questionStep 1 localization has been revised for improved clarityCompanion AppA new alert panel warns users if their Companion App is not up to dateMachine RoomWater Codex:...Read full article on Community Announcements (Maximum Luke)AnnouncementsOfficial
How 2 Escape: Lost Submarine is now available!
We’re proud to announce that the highly anticipated new chapter in the How 2 Escape series is finally available on PC and consoles!Watch the Launch Trailer!If you haven’t played the first game, no worries! How 2 Escape: Lost Submarine is a unique co-op puzzle adventure where you and a friend will team up to reach a lost submarine and prevent the outbreak of war. Work together on two devices to solve increasingly challenging puzzles, where each of you has your own unique role to play. Communication is key!And YES! In “How 2 Escape”, you’ll have to team up with a friend!Invite someone to play with you for free and enjoy this unique co-op experience.Crafted with passion by a small indie team in France, we hope you’ll enjoy what we’ve built over the past months. Thank you for your support, and good luck escaping!Stuck and Need Help?If you need a nudge in the right direction for a puzzle in How 2 Escape: Lost Submarine, we have a helpful guide on our website! Join our How 2 Escape: Lost Submarine AMAThis Thursday, June 26th, the development team at Breakfirst will be hanging out on r/PlayStation answering your questions about the game!Read full article on Community Announcements (Maximum Luke)Community & EventsOfficial
Join our Developer Stream for Next Fest
Join us for a special 30-minute stream as we dive into How 2 Escape: Lost Submarine — a tense, 2-player co-op escape-room adventure where only one copy is needed thanks to the free companion app! Meet two members of our indie team from France and hear how we’re bringing a fresh twist to the puzzle genre we love. 🧩 Try the free demo now on Steam, Xbox, and Nintendo Switch 🗓️ Launches June 24, 2025 📱 Play with a friend on PC or mobile using the free companion app 💚 Wishlist or pre-order to support the project!Read full article on Community Announcements (Maximum Luke)AnnouncementsOfficial
How 2 Escape: Lost Submarine Launches June 24
Mark your calendars: How 2 Escape: Lost Submarine launches on June 24th! The latest entry in the How 2 Escape series throws you and a partner into a high-stakes mission to locate a missing submarine and prevent the outbreak of a global war. With only your wits—and each other—you’ll need to work together to solve puzzles, crack codes, and escape before time runs out. Watch the Launch Trailer Get a personalized look into How 2 Escape: Lost Submarine from the development team in this new trailer. What to Expect Co-op puzzle solving with a friend Cross-platform play across two devices Only one copy needed! Your partner can download the free companion app on PC or mobile Increasingly challenging and immersive puzzles Simple, intuitive controls for all players Try it now – the demo is available today! Jump in early and get a taste of the tension and teamwork that define How 2 Escape: Lost Submarine. Grab your partner. Load up your comms. And get ready to dive deep. 👉 Wishlist now and download the demo to get started! https://store.steampowered.com/app/3530680/How_2_Escape_Lost_Submarine/Read full article on Community Announcements (AlexMaximumEnt)AnnouncementsOfficial
Experience a Unique Puzzle Co-Op Adventure in How 2 Escape: Lost Submarine
Welcome to How 2 Escape: Lost Submarine! A unique co-op puzzle game where you and a friend will team up to reach a lost submarine and prevent the outbreak of war. Work together on two devices to solve increasingly challenging puzzles, where each of you has your own unique role to play. How 2 Escape: Lost Submarine will be available in 2025 on Steam and consoles. With the game, there will be a free companion app for player 2 that will be available on PC (Steam), Android and iOS. A free companion app? Yes! In “How 2 Escape”, you’ll have to team up with a friend! Invite someone to play with you for free and enjoy this unique co-op experience. If you aren’t familiar with the How 2 Escape concept, feel free to have a look at our first episode, that is currently on sale to celebrate the latest announcement! https://store.steampowered.com/app/2264140/How_2_Escape/ Wishlist How 2 Escape: Lost Submarine today: https://store.steampowered.com/app/3530680/How_2_Escape_Lost_Submarine/ You can already discover more about the stories and the first screenshots and storyline on our Steam Page! We cannot wait to welcome you in the “How 2 Escape” universe! Breakfirst & Maximum Entertainment teamsRead full article on Community Announcements (Maximilange)
