A downloadable game for Windows, macOS, and Linux

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.

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)
PlatformsWindows, macOS, Linux
Rated 4.4 out of 5 stars
(13 total ratings)
AuthorsMarine Dateologists, bobcgames, PMscenarios, soulsoftea
GenreVisual Novel
Made withRen'Py
TagsAliens, bxb, Futuristic, LGBT, Mystery, Queer, Romance, Sci-fi, Yaoi
Average sessionA few hours
InputsKeyboard, Mouse, Gamepad (any)
LinksCommunity, Blog


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

Install instructions

Download, unzip with a unpacker - like 7zip, run.

Some anti-viruses react to the archives in renpy projects. Let the program finish scanning the game, and it should open and run fine.

Development log


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any updates? just played the first part, would loove to know if its been dropped

Does anyone know if this is now a finished game? 

The second part is still theoretically in progress, but it is not finished yet, as far as I'm aware.

damn last comment was a year ago o.o

I see the last update was over 2 years ago... Any updates? I hope this project isn't dead!


PMscenarios is still working on the script for the second part. 

Don't worry -- we still intend to finish up the game!


That was very interesting. I love sci-fi visual novels. It’s well written, with many choices of acting and responses. Especially interesting was the presence of a host and whole concept of the world. 

Can’t wait for the next episode :)

Glad you enjoyed it! Hopefully the second part won't disappoint. :)


Oh my god, I just played through part one of Xenopathy and i don't know how I'll survive without the rest :P It's just sooo good and soo exciting! Really looking forward to seeing the rest of the game!! (but your health comes first imo and i hope you'll get well soon) <3.

Thank you so much for playing and commenting! It helps to know ppl care :)

hello! may i ask how progress is coming along?



It's so nice to hear ppl are still interested in Xenos! 
I really want to get back to writing, I have so many ideas and so much of the rest of the game scripted out and world building done.
Currently working with my doctor to find some medication that lets me get back to writing, but cannot promise anything yet, unfortunately :(

Xenopathy has not been forgotten tho! It is definitely something I really want to finish

Oh I hope everything is alright! I loved Xenos so I'm glad to hear it's still up and running, thank you!!

It is just executive dysfunction kicking my ass :/
I'm so glad to hear you enjoyed the first part tho! <3


so excited to play this! looks beautiful!


Thank you! SoulSoftEAs art is amazing

(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.