: Features a mix of close-quarters knife combat and a variety of 16 distinct guns. Players use god-like dodge rolls and headshot-focused shooting to survive. Progression & Content
NEKOUJI STUDIO has maintained a transparent development process, frequently updating fans via platforms like Patreon. Following the success of the initial release on platforms like Steam and DLsite in August 2025, the studio has already begun active development on a .
The story of Cyan Brain is a modern indie success narrative. What began as a raw, intriguing "Demo 8.1" shared on Patreon—a test of ideas and mechanics—blossomed into a fully-realized action-horror title that stands out in a crowded market. NEKOUJI STUDIO successfully translated the dark, oppressive atmosphere and unique "Death Card" punishment system of their early prototype into a polished, 2-3 hour adrenaline sprint that respects the player's time while challenging their reflexes.
: The game features dynamic CGs and animations, with an official artbook available on showcasing concept art and character portraits. Content Warning : According to Cyan Brain -Demo 8.1- -NEKOUJI STUDIO-
CYAN BRAIN is a dystopian sci-fi side-scrolling action shooter developed by NEKOUJI STUDIO
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Combat-driven progression, Resource Management, Narrative Branching 1. Introduction : Features a mix of close-quarters knife combat
So, what makes Cyan Brain -Demo 8.1- -NEKOUJI STUDIO- tick? Here are some key features and technical details that showcase the project's innovative spirit:
: The game features platforming elements, though some players have noted high difficulty with fast-moving platforms leading to fall damage. Upgrades and Gear
The development journey under NEKOUJI STUDIO has been defined by granular, community-backed public and private testing cycles. Early versions started as simple, experimental survival concepts where players navigated claustrophobic, sterile corridors to evade biomechanical entities. Following the success of the initial release on
: Healing relies on an unconventional dynamic. Eating food found across maps increases the player's hydration stat; once hydration is maxed out, healing items are automatically manufactured.
"The demo is over," the voice echoed, vibrating in Kaito's very bones. "The performance begins."