A downloadable game for Windows, macOS, and Linux

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Experience the romance, drama, and mystery of humanity from the outside...

In a future where humanity has taken to the stars, and where alien symbiotes can  temporarily share a willing human host's body, play as an alien thrown into the middle of an awkward romance and mystery.

The Ishin aliens have the ability to transfer their minds into willing hosts - sharing the space with the existing consciousness.

The first host is a shy, in-love bio-engineer who hopes the alien can give him the confidence he needs to ask out the person of his dreams, but things don't go as planned, and when the alien returns to the mine base and into the second host, it's for a much more urgent, and darker reason.

Part one of the game is available now, and covers the first half of the story. The game will be updated once the rest is complete.

FULL VERSION slated for release early 2019.

Xenopathy is a hybrid romance/mystery visual novel that was written, drawn, and coded in two months for Yaoijam 2018. It currently features:

  • ~20,000 words
  • 2 ending variations (that will further branch in the second part)

The final game is expected to be around 40,000 words with at least three distinct endings.

This is the second collaborative project by Marine Dateologists:

  • Project Lead, World Builder, and Writer
    PMscenarios (itchio)
  • Programmer, GUI Designer, and Writer
    Bob Conway (itchio)
  • Sprite Artist
    SoulsoftEA (itchio)


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Click download now to get access to the following files:

Xenos-0.1-mac.zip 81 MB
Xenos-0.1-pc.zip 98 MB

Development log


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so excited to play this! looks beautiful!

(1 edit)

Hi! I wanted to start this game but i'd like more to play the fully released version. Do you have an idea on when this will be possible? Otherwise i think i'll go with the demo version x)


Thank you for the interest in the game! Im trying to finish it as fast as possible, but I unfortunately do not have a release date atm. 

The current release encompasses the first half of the game, so if you wanna try that, it'll let you experience time with the first of the 2 hosts :) 

hi! do you know when are you going to release the full game? :D

Hi, thank you for the interest :)
Just posted a devlog with an update on this: https://marinedateologists.itch.io/xenopathy/devlog/61670/release-delay-and-prog...

Sorry for the delay, hope to have it out soon!

This was a lot of fun! I loved discovering more about the world building, and the twist at the end has got me eager to see what happens next, :D. 

Thank you for playing and commenting! :)

i need this game I'm so glad it's almost october. how much will the full game be?

Thank you for your kind comment! :)
The game was always planned to be "pay what you want", so we'll be keeping that for the full release

I really think your work is worth a fair set price just throwing that out there.


Really, really good... Realistic characters and an intriguing plot in a well built universe. Looking forward to the follow-up!

Thank you! We're glad you enjoyed the first part. There's a lot more backstory around the characters, Company, and aliens, and we're looking forward to sharing it.