VN Ren'Py Neuro/Splice [Development Thread]

FlimsyLegs

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Game Developer
Mar 30, 2023
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Background

Neuro/Splice is my fourth AVN, following Jessica's Plight, Animus Non Grata and Taru's Infernal Pledge. While Taru's Infernal Pledge isn't done yet (at the time of writing on December 5th 2025), my work is done as the story is completed. I'm waiting for art to be slowly but surely created by the fantastic artists for that game, which gives me time to pour my creative efforts into this new project.

Joining me once again is the fantastic Daz3D artist Synthetic Rush , who made all of the art for Animus Non Grata!

A little bit about me: I'm a professional programmer who's always read a ton of books. Writing comes easy for me, but I'm absolutely terrible when it comes to art (just look at Jessica's Plight!). I like AVNs due to the straight-forward programming setup, which gives me a break from my usual 9 to 5 work. My kink happens to be BDSM, which is why all of my games focus almost exclusively on this theme. I typically write female protagonist games, but Neuro/Splice is going to my first title where you also play as a guy.

Story Synopsis

The elevator pitch for Neuro/Splice is simply: "What if we took the premise of Face/Off (the movie), add a bunch of kinky BDSM sex, a gender-swap twist to the body-swap story, and a mystery sci-fi story that ties (pun intended) the story together?"

We have a dystopian sci-fi setting where police-man Ryke Voss (working for NexaCorp) is at odds with the criminal Cassie Marlowe and her gang of Veilbreakers. Neuro/Splice starts when a terrorist group known as the Veilbreakers successfully plant a computer virus in the NexaCorp mainframe, threatening to spill the corporate secrets to the world, before triggering a catastrophic meltdown. The culprits straight-up refuse to reveal how to safely removed it, and time is running out... Ryke and his team form a mad plan: Infiltrate the mixed-gender maximum security prison where Clyde and Eric are held, pretending to be Cassie, and learn the truth about the virus. To do so, they need to use an experimental procedure known as Neuro-Splicing, transferring Ryke's consciousness into Cassie's body.

Ryke (in Cassie's body) is thrown into prison, and a dangerous underground world, in an attempt to learn how to stop the virus. Inevitably he stumbles upon truths about NexaCorp that makes him question everything he knows. Meanwhile, Cassie wakes up in Ryke's body and finds herself in a unique position of power to learn more about the NexaCorp from within its own ranks...

Additional info

Multiple protagonist is planned to be handled the following way: Players play as both Cassie and Ryke, who at some point in the game swap bodies (gender swap). Sexual content in both paths can generally be ignored/skipped, if you prefer to see only FMC or MMC sexual content. MC Cassie (in Ryke's body) can have kinky bdsm sex with Ryke's wife Marie. MC Ryke (in Cassie's body) can have kinky bdsm sex with Cassie's husband Clyde. It's up to the player to decide if they pursue these paths. In addition to these two main relationships and their dynamics, there are other characters you can pursue (or be pursued by), such as Police trainee's 'Emma Foxx' and 'Olivia Snyder', Veilbreaker 'Eric Hyde', the Warden of The Rock 'Mike Miller' and inmates and prison guards who want to take advantage of you.

The goal of Neuro/Splice is to intrigue the player with what NexaCorp is planning, and what's really going on in the world around them. We explore these topics from two perspectives, learning different things to paint a full picture, leading up to a cconfrontation between Ryke and Cassie and the finale that follows. Once there are more chapters, I'm going to experiment with a feature to play only as Cassie or only as Ryke, if you wish to experience the game from only one character's perspective.

Kinks and tags

- BDSM
- Every sex position and act we can imagine (Usually involving bondage)
- Body swap
- Gender swap
- Maledom and femdom
- Multiple protagonists
- Female and Male protagonist

Current progress

2025.12.04: We have finished chapters 1 and 2, and roughly 50% of the art for Chapter 3 is completed. Story-wise, we've written chapters 1 to 5.

Screenshots

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FlimsyLegs

Member
Game Developer
Mar 30, 2023
345
744
188
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##### Devlog 2025-12-25 #####
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Synthetic Rush and I are taking the rest of the year off to spend time with friends and family. Development will pick up again early January 2026!

We have made a ton of progress on Chapter 3, with the story being fully written. Additionally, most of the art is done as well! Synthetic Rush is working on one last animation scene, but we hope it will prove worth the extra effort!

On the topic of animations, you should probably not be expecting a ton of animations from this game, maybe something along the lines of 1-2 per chapter. Animating every lewd scene and sex position is simply out of the scope for this project. We'd much rather complete all renders and the story, than add a ton of animations.

All that said, we believe that with our current pace, an early January 2026 release of Chapter 3 is very likely. Stay tuned for more information!
Happy holidays, and a bombastic new year!

Cheers,
FlimsyLegs
 

FlimsyLegs

Member
Game Developer
Mar 30, 2023
345
744
188
###########################
##### Devlog 2026-01-03 #####
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Version 0.02.0-ch3 (a.k.a. 0.02.0) is now available, which includes the entirety of Chapter 3! In this chapter, we get to meet three new characters: Marie, Emma and Olivia, three women who are important in the NexaCorp storyline. All of them are potential kinky sex partners.

There are four ways to get access to this version: (1) Be a SubscribeStar member, (2) Be a Patreon member, (3) Buy the "full version" Patreon collection or (4) Buy the full version of the game on itch.

We are now starting work on Chapter 4! The initial script has already been written, but polishing, finalizing and render work has only just begun.

Cheers,
FlimsyLegs


Detailed v0.02.0 Changelog:

- Added entire Chapter 3 (~1000 lines, ~8000 words)
- Added 42 new renders and 2 animations
- Removed unnecessary warning about potential NTR. This game is about kinky BDSM, not about exploring NTR-related situations or feelings.

The current version has 2 227 lines of story (15 000 words), 157 high-quality Daz3D renders and 2 animations. A reading pace of 200-300 words/minute makes the current build 50 - 75 minutes long.

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