Flowe-r Cerebrum [Ch.4-first half] [KANANN Dev]

The world lies covered in ash and ruins after the Great Collapse War. As humanity risks everything to survive, the

The world lies covered in ash and ruins after the Great Collapse War. As humanity risks everything to survive, the greatest danger now lurks within the remnants of the conflict.
Struggling to endure, our protagonist embarks on a new mission. The task is simple: track down a target in a sunken city and deliver it to headquarters.
However, this journey will not only test their physical limits but also force them to confront the ghosts of their past.
With each step, they uncover the scars left by the war and the cracks within their own psyche. As they draw closer to the target, they face more questions than answers. Their past, the mystery of the target, and the true intentions of those around them pull them toward an ending they could never predict.
In the intersection of war and technology, where loyalty, power, and humanity blur, what choices will be made?
~~~~PLEASE READ DEVELOPER NOTES BEFORE YOU PLAY~~~~

Thread Updated: 2026-08-23
Release Date: 2026-08-23
Developer: KANANN Dev Patreon itch.io
Censored: No
Version: Chapter 4 First Half
OS: Windows, Linux, Mac
Language: English
Genre:
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3DCG, Anal Sex, Animated, Cheating, Dilf, Drugs, Dystopian setting, Female Protagonist, Graphic violence, Groping, Handjob, Humor, Lesbian, Male Domination, Male Protagonist, Masturbation, Multiple Penetration, Multiple Protagonist, Oral Sex, PoV, RPG, Spanking, Vaginal sex, Ahegao, Exhibitionism
Installation:
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1. Extract and run.
Changelog:
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CH4
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-Since CH4 will receive another update 2 weeks after the initial release, I want you to know exactly what you can expect from both halves.
If you’re a Patreon supporter, you’ll have a special version where you can replay certain scenes at the sick looking menu, along with a small ~animated~ additional sequence with Flowe-r. (You need to dowload from patreon for special version…)
The Daydream Sequence will be updated with each chapter. Patreon supporters will always have access to the most up-to-date version, while the public version will receive the previous version of the Daydream Sequence.
CH4 FIRST HALF CONTAINS:
  • 3,326 Reworked Renders
  • 803 New Renders
  • 12,537 Lines of Code (7,982 Story/Dialogue Lines)
  • 3 New Animations
  • 2 New H-Scenes
  • 12 New Soundtracks
  • 6 New Sound Effects
  • Pretty Much a Lore Bomb
CH4 SECOND HALF WILL CONTAIN:
  • 1,050+ New Renders (Approx.)
  • 9,892+ Lines of Story/Dialogue Code
  • 12 New Animations
  • 6 New H-Scenes
  • 9 New Soundtracks
  • 4 New Sound Effects
  • Pretty Much a Lore Bomb — S+ Pro Max
CH3
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Major Changes
  • Completely redesigned and switched to dynamic UI.
  • New Immersive Dynamic Menu added.
  • New Minigame: Blackjack.
  • A more optimized experience: Render sizes have been reduced while maintaining as much quality as possible.
CH3 Versions space requirements
  • 3.9 GB (Original)
  • N/A (Lite)
  • N/A (Patreon Exclusive)
Due to the increasing size of the game and my limited time, I’ve shifted my focus solely to the main version. Because of this, I have removed the Lite version for CH3.
If anyone wants to compress the game, feel free to do so. Thank you.
Moderate Changes
  • 4,000+ new renders added.
  • 16+ new animations added 5 Story, 11 H-Scene, +Remakes.
  • 25+ new BGMs & 10+ new SFXs added.
  • 22,000+ new lines of code (13,000 dialogue).
  • 69,000+ new words added.
  • Script errors fixed that caused some dialogues to display error messages.
Minor Changes
  • Writing and punctuation errors corrected.
  • Lot’s of Bugfixes.
Overall Progress

CH3 now contains:

  • ~41,000+ lines of code (CH2.5: 19,234 → CH3: ~41,200+)
  • 3,800+ images (CH2.5: 4,102 → CH3: 7,600+)
  • 72+ animations (CH2.5: 54 → CH3: 70+)
  • 89+ background music (CH2.5: 64 → CH3: 89+)
  • 69,000+ new words added in CH3 alone.
CH2.5
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Major Changes
A more optimized experience: Render sizes have been reduced while maintaining as much quality as possible.
  • CH2.5 Versions space requirements
    • 2.6GB Original
    • 1.4GB Lite
    • 2.6GB Patreon Exclusive~
Moderate Changes
  • Chapter 2 renders & some scenes were reworked.
  • Fixed script errors that caused some dialogues to display error messages.
Minor Changes
  • 2465 new images added.
  • 22 new animations added.
  • 36 new songs & 21 new sound effects added.
  • 10,131 lines of dialog added.
  • Writing and punctuation errors corrected.
Overall Progress
  • CH2.5 now contains
    • 19234 lines of code
    • 4102 images
    • 54 animation
    • 64 background music
CH2.0.5B
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Critical Fixes
  • Fixed the Google Drive download link issue. You can now download it directly without access problems.
  • Fixed an archive error that caused animations and sounds to not work in Chapter 1.
Major Changes
  • 23 new animations added.
  • A more optimized experience: Render sizes have been reduced while maintaining as much quality as possible.
  • Three new versions for better storage management:
    • 1.7GB Original
    • 900MB Lite
    • 1.7GB Patreon Exclusive~
Moderate Changes
  • 1486 new renders added.
  • 18 new songs & 10 new sound effects added.
  • Fixed script errors that caused some dialogues to display error messages.
Minor Changes
  • Chapter 1 renders & some scenes were reworked.
  • 12,000 lines of new code added.
  • Writing and punctuation errors corrected.
Overall Progress
Chapter 2 now contains 74% of Chapter 1’s total with almost same size (for reference, Chapter 1 had 4000 lines of code, 550 images, and 17 animations).
CH1.0.1B 
Initial zone Release
Developer Notes:
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I HOPE YOU READING THIS MESSAGE BEFORE YOU PLAY…
This game has lots of animated and attentive segs but, don’t speed run the game. My main focus is ~~story~~
Most important note: I admit that in CH1, CH2, and CH2.5, the render quality of some scenes was looked… out of place…
I fixed almost 3,500 render for that matter. For detailed explanation: VISIT THIS ITCH.IO POST
BUT! With CH3(and especially with CH4), the visuals now have a noticeably improved level of quality, and the renders look much more cohesive as a whole. Before writing anything about the renders, I kindly ask you to at least play until halfway through CH3… <3
———————–
Chapter 4 Second Half will be released 2 weeks after CH4 First Half.
~Planned Tags:
Harem
~Future Plans:
Advancing the story.
DOWNLOAD
Win/Linux: GDRIVE GOFILE PIXELDRAINDATANODESVIKINGFILE
Mac: GDRIVE GOFILE PIXELDRAINDATANODESVIKINGFILE

Extras: Walkthrough
*This unofficial port/mod is not released by the developer. Download/use at your own risk.

Flowe-r Cerebrum [Ch.4-first half] [KANANN Dev]