
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
Modeled estimate, not a reported figure. How we estimate →
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About

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.
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.
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
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, Italian, German, Spanish - Spain, Simplified Chinese*, Japanese, Portuguese - Portugal*languages with full audio support
Engagement
Hours played at review time, across 40 reviews with recorded playtime.
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
游戏合作模式新颖,内容需要思考研究,但总体来说可操作自由度有点低,剧情长度比较短,和好友联机的方式一开始比较麻烦
挺好
The challenges get progressively harder, keeping you engaged and eager to solve the next puzzle. Great for friends who like to think outside the box while having fun together. The setting confines you to tight steel corridors, every beep, every diagram, every whispered instruction matters
В разы лучше первой части, главное системное требование двухзначное iq на двоих игроков.
6 hours bem acompanhado! Pior tradução de sempre, obrigado e bom dia.
Thrilling co-op escape adventure with a gripping story and tense puzzles. The new submarine setting feels immersive, and solving challenges with a friend is pure excitement from start to finish. Intense atmosphere, smart asymmetry, and strong communication make it a thrilling experience for two. We recommend it!
Playing How 2 Escape: Lost Submarine feels like conducting a silent operation with your partner. One fiddles with ballast and periscope controls while the other parses schematics through their app. An intense and fun cooperative puzzle game where one player explores the submarine while the other uses the app to find clues. Communicate, save the world, and master the torpedo before time runs out! My partner and I recommend it!
It's *okay*, but the puzzles are pretty much all just annoying "communicate this unclear information to your partner, but also it's not clear what information you need to communicate" - like Keep Talking and Nobody Explodes but without the guardrails that establish the rules you're going to be working with first, which makes it worse. And because the bulk of the puzzle is not figuring out problems, but figuring out *what the problem is*, it's not replayable - you *could* escalate the difficulty but it would just be like "now count 12 things" instead of "now count 6 things", or "now read 12 numbers off your screen and wait for your partner to find them on their screen" instead of doing that with 6 numbers. A few of the puzzles worked as both puzzle and communication thing (the vent-maze was a good one in that it was relatively clear what you were doing, but then introduced surprises in the maze). I appreciate that you only have to buy one copy for two players, but then that also becomes an issue when the "not in the submarine" player is stuck mostly reading manuals (again, the vent-maze being a pleasant exception). My wife, who does not enjoy reading game manuals, was stuck in the role of "mostly reader". Again, this is tangibly worse than Keep Talking and Nobody Explodes in that there the "reader" role is at least rapidly cross-referencing information, not just reading a wall of text. I gather the menu navigation for that player is also frustrating - e.g. the "codex" screens being only accessible via code even when they're already unlocked so if you want to go back to one you need to have taken notes or ask the other player again, and it being very easy to navigate completely out of the level your partner is playing, without realizing. The boundaries between "rooms" are very soft for that player, and impassable for the other player. It's weird because there's no reason to be able to go back a room at all, let alone easily. "Don't look at the other person's screen" is an okay model for a puzzle or two, or for the gimmick of a more constrained game where that's clearly the focus of the game, but here it's mostly just annoying, making it so the puzzles have to be worse to accommodate the artificial communication problem, and the communication part is worse because you're trying to also solve a puzzle, not just communicate the information. In the several instances when it's "do the same thing multiple times", because the puzzles aren't actually getting more difficult or anything, it feels more like a chore than a game. (The Conway's Life Bingo game is the absolute nadir of that.) Probably the biggest problem is the asymmetry - in most escape rooms typically anyone can be solving any part of the puzzle, but here one player gets the better part and the other player gets the worse part, and it's *mostly* one way around. In some ways this is a good model in that it tries to avoid one player doing the whole thing and the other just tagging along for the ride, but instead of feeling like everyone's taking part, it mostly feels like one player is stuck with a manual.
难度适中捏
porcoido
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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