Played it with a friend, had tons of fun. We also played the first part of the series about half a year ago and loved the new setting. We sadly noticed that the riddles seemed way more streamlined than in the first game. In the first part of the series we enjoyed getting dumped the puzzle pieces of three or more riddles onto us just to slowly sort it out. This game clearly sorts the parts of all riddles apart and even tells you (in most parts) which and how many puzzles need to be solved and whats needed to do that. For most people this will be a good quality of life aspect, but we enjoyed the rough edges. Anyway, we still had a lot of fun. PS: next part in a plane trust me
How 2 Escape: Lost Submarine
- Release Date:
- Jun 24, 2025
- Developer:
- Breakfirst Games
- Publisher:
- Maximum Entertainment, Breakfirst Games
- Platforms:
- Windows
Game Tags
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
Screenshots
User Reviews
Very nice! A little shorter than the first one, and the riddles are a little easier but that was still a lot of fun! The graphics are amazing also. Would recommend.
Overall this is a nice little adventure. It took us about 3.5 hours to beat it, but we cheated, my partner had access to my screen, without visual access it might take about 30-60 minutes more, due to the need to actually communicate info verbally (which I actually recommend). Most of the puzzles are fine, but the "geolocation" one is just weird, there is no real world logic applicable to it and the description just sucked (still we only needed the first hint to get it, buuuut). Pick it up for a fun weekend if you are into puzzles
System Requirements
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
FAQ
How much does How 2 Escape: Lost Submarine cost?
How 2 Escape: Lost Submarine costs $12.99.
What are the system requirements for How 2 Escape: Lost Submarine?
Minimum: Minimum: OS: Windows 10 Processor: i3-5500 or more Memory: 4 GB RAM Graphics: GTX 660 or more Storage: 2 GB available space Recommended: Recommended: OS: Windows 10 Processor: i5-4440 or more Memory: 4 GB RAM Graphics: GTX 1650
What platforms is How 2 Escape: Lost Submarine available on?
How 2 Escape: Lost Submarine is available on Windows PC.
Is How 2 Escape: Lost Submarine worth buying?
How 2 Escape: Lost Submarine has 86% positive reviews from 22 players.
When was How 2 Escape: Lost Submarine released?
How 2 Escape: Lost Submarine was released on Jun 24, 2025.
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