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Watch trailer on Steam ↗Panthalassa
Meia Calça · Published by Meia Calça · Official site ↗
Very Positive — 98% positive (114 reviews) · 12 achievements
Last updated 28 Sept 2026
Panthalassa is a Point and click Puzzle game set in an underwater alien world. You play as an AI reborn in a highly advanced body they do not recognize. Interface with otherworldly technology and unlock the secrets behind this strange planet.
£12.99
Lowest price we've ever recorded
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Price history
Adventure, Indie, Casual · 2026 · More £5 - £15 games
Embark on an underwater odyssey as an AI reborn in an advanced body, solving puzzles and uncovering secrets in this indie adventure from Meia Calça.
About this game
PANTHALASSA
In Panthalassa, you delve into an alien underwater world where you play as Magellan (aka MAG), an autonomous exploratory submarine who suffers a catastrophic malfunction and awakes anew, reborn in a highly advanced body, in a world they do not recognize. With technology alien to them and new emotions that were not there before.
In this game, you must find out where you are, whose body you inhabit, and if there are any hopes of returning home? There'll be secrets to uncover behind an mysterious civilization and your body's previous inhabitant - you may even find out a bit more than you bargained for.
Panthalassa is inspired by Point adventure games from the 90s and early 2000s. You see the world through the eyes of a machine and must navigate strange user interfaces where the digital and physical worlds clash. You will find new Aquatic Specimens, catalog them, solve puzzles and organically discover hidden information by searching every nook and cranny of this bizarre digital world.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10/11
- Processor: Intel Core i3 Processor or equivalent
- Memory: 4 GB RAM
- Graphics: Dedicated graphics card with 512MB RAM and Webgl enabled
- Storage: 2 GB available space
- Additional Notes: Steam Deck suport
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
PANTHALASSA UPDATE 16/07/2026
This update add the portuguese translation to the game We also fixed the bug where you didnt need to complete the power station puzzle to progress through the maze Corrected some spelling mistakes (doubt thats all of them) Removed Herobrine Corrected missing text in the ALL SEA ending Added something but I can't say whatRead full article on Community Announcements (meiacalca.studios)AnnouncementsOfficial
Panthalassa is now available in Portuguese
Hey!In our latest update, Panthalassa is now playable in our mother tongue of Portuguese!Not only that, but we have also fixed some bugs and english text in this update, we also might have added something secret, but I was asked to not mention that, so pretend I didn't say anything.We hope to continue translating this game into more languages! we are hoping to have a Japanese and a Simplified Chinese version available later this year, we will see how it goes!Thanks for your continued support.Read full article on Community Announcements (meiacalca.studios)AnnouncementsOfficial
It has been one month since Panthalassa's release (and other mysteries)
Last month we had the pleasure of releasing PANTHALASSA out to the world and despite the modest launch, we are so overwhelmed by the incredibly positive response the game has been getting (98% Very positive rating on steam!!) It has been heartwarming to read all you positive comments and to see how people have enjoyed the game so far. THANK YOU ALL FOR THE SUPPORT!Meanwhile, I have to mention ALL SEA, the introductory Zine to Panthalassa which is available now.I also wanted to mention the Panthalassa soundtrack! which is now available to stream and buy on bandcamp. We at some point put it up on steam as well, so look out for that!Finally, we have been hearing some strange rumors coming from the steam discussion forums, something about an ARG related with Tarot? https://steamcommunity.com/app/2955720/discussions/0/563659628006631559/Honestly, no idea what they're going on about. Seems like these guys are going into some sort of strange rabbit hole following patters and trying to decode secret messages. You have to be careful about rabbit holes because you never know where they can lead you.Once again, thanks to everyone for your support so far and Thank you for playing the game!Read full article on Community Announcements (meiacalca.studios)AnnouncementsOfficial
The Official Soundtrack for Panthalassa is out now!
Big week for Panthalassa fans (yes all three of you reading this) as we have just released the official soundtrack on Bandcamp and youtube! This soundtrack was created by Tomás Nobre, Ana Greengrass and Bugsnapper.Listen to it on BandcampOr you can also stream the full thing on youtubeIsn't that a nice cover? looks very sleek and professional in my opinionThank you for your continued support!Read full article on Community Announcements (meiacalca.studios)AnnouncementsOfficial
Try ou ALL SEA an Introductory Zinelet to PANTHALASSA
Check out ALL SEA here!The good people at Data Sparrow reached out to us asking if they could make a zine about Panthalassa.If you are currently playing the game or if you're interested in checking it out and want to see what it is all about feel free to pick it up!ALL SEA features concept art and assets from the game as well as writing inspired by the events of the game (everything is above board obviously). If haven't gotten your PANTHALASSA Kick or if you want to have a handy zinelet that might even help you solve some puzzles make sure to take a look.The zine also covers some of our biggest inspirations from books to movies to games. Here is that beautiful pageWow, so lovely and now everyone knows I like Star Trek which is really what this has been all aboutRead full article on Community Announcements (meiacalca.studios)
