★★★★★(4)
The Neuronauts
About The Neuronauts
The Neuronauts is a Ren'Py adult visual novel by The Neuronaut, blending sci-fi with harem and monster-girl themes. It uses 3D CG renders and animated clips. You play a male protagonist in a speculative future where first contact with aliens reveals a friendly, sexually open culture unfamiliar with monogamy. The story emphasizes evolutionary xenobiology, xenoanthropology, psychology, polyamory, and cultural exchange, aiming for scientific realism while keeping the fun.
Development is ongoing with Season 2 Week 5.5, dated September 19, 2026. It runs on Windows, Linux, Mac, and Android, in English, with no censorship. The latest update adds about 42.5k new words, 3.5 hours of gameplay, 900 new renders, and 43 new videos, plus spelling and grammar improvements. Translations are delayed by a formatting issue, and the next release is expected at the end of October, bringing major plot points.
Developer's description
This is a semi-hard(hehe) scifi harem AVN with as much focus on being scientifically realistic without killing the fun. You've never read a story format like this before. Based on speculative futurism, evolutionary xenobiology and xeno"Anthro"pology, this is probably the most science heavy story you've ever read, written by a scientist. If you want to explore the possible universe with curiosity in a way likely never attempted before, this is for you. Spoiler First contact with aliens is not what we expected, they are much friendlier, monogamy is foreign to them, and they are obsessed with us as a culture and species. They also find us really hot. (Their social structure and sexual viewpoints based on bonobo society) Experience the culture shock with your fellow humans of a much more sexually normalized world as both species have things to teach the other. What would a species that lives around an M class red star look like, one likely answer is that all plants will be purple and black? Also includes discussions on psychology(trauma/neurodivergence/anxiety/cognitive biases), dating, communication, self esteem, socializing advice you wont other places, obscure world history, solarpunk concepts, terreformation logistics, polyamory and how it works, and lots of discussions about food. Trailer Spoiler
The Neuronauts screenshots
Download The Neuronauts S2 Week5.5
Win/Linux
Android
Changelog
Player reviews
What players say
Reception is mixed but mostly negative, praising story while criticizing graphics, pacing, linearity, and harem content.
Players like
- Interesting science-fiction story rather than pure porn
- Story is acceptable despite other flaws
Common complaints
- Character models and graphics are poor
- Harem characters have explicit past group sex
- Game feels linear and not sandbox-like
Best for players who want a sci-fi story with adult harem content.
Summarised from 4 written player reviews.
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