What it likely sold — estimate, stated as a range on purpose
Lifetime units: ~44,682
(P10–P90: 17,873 – 98,300)
Gross revenue: ~$549,222
($219,691 – $1,208,284)
Estimate, method v1.0 — before Steam's ~30% share, refunds and VAT. The band means: we'd be surprised if the truth sat outside it. How we estimate
Player voice — measured shares of Steam thumbs, never a model
Last 90 days: 90% positive across 61 stored reviews. Action games with 100+ reviews typically sit around 84% (median of 3353 games).
Gameplay & mechanics91% positive · 108 mentions
“Concise Game Reviews: CYAN BRAIN [CYANBRAIN/シアンブレイン] (Scroll down for the longer version) Game Value: ✅ Highly recommended for fans of brutal sci-fi side-scrollers laced with ryona, where an amnesiac busty operative's desperate gunfights…”Recommended · Steam review · Dec 2025 · 58 h played
Story & writing91% positive · 103 mentions
“So I don't usually leave reviews on H-games because there's a possibility it could get back to certain people I know irl, and I don't need to have that conversation--but I feel compelled to leave a review here because I think this game is…”Recommended · Steam review · Jan 2026 · 7 h played
Visuals & audio94% positive · 94 mentions
“This game portends the question: what if we took the juxtaposition of sex and death to its extreme and fused that into a low effort and repetitive video game with a great style and decent but very sporadic sci-fi storytelling? Do the…”Recommended · Steam review · Dec 2025 · 5 h played
Content & longevity89% positive · 47 mentions
“This game portends the question: what if we took the juxtaposition of sex and death to its extreme and fused that into a low effort and repetitive video game with a great style and decent but very sporadic sci-fi storytelling? Do the…”Recommended · Steam review · Dec 2025 · 5 h played
Price & value88% positive · 25 mentions
“Short but enjoyable game overall. The gameplay isn't anything to write home about, but the R-18 guro art and animations are well worth the pricetag. Would definitely recommend if you're the target audience for this sort of content. To be…”Recommended · Steam review · Feb 2026 · 6 h played
Difficulty & balance100% positive · 24 mentions
“Concise Game Reviews: CYAN BRAIN [CYANBRAIN/シアンブレイン] (Scroll down for the longer version) Game Value: ✅ Highly recommended for fans of brutal sci-fi side-scrollers laced with ryona, where an amnesiac busty operative's desperate gunfights…”Recommended · Steam review · Dec 2025 · 58 h played
Controls & UI100% positive · 14 mentions
“Beautiful game, but holy f***, sheesh, wow, I was not expecting that. So... I am not really into the whole gore thing, and I was given plenty of warnings and heads up before buying this. But I didn't read any because the publisher is a…”Recommended · Steam review · Dec 2025 · 8 h played
Performance & stability75% positive · 12 mentions
“Concise Game Reviews: CYAN BRAIN [CYANBRAIN/シアンブレイン] (Scroll down for the longer version) Game Value: ✅ Highly recommended for fans of brutal sci-fi side-scrollers laced with ryona, where an amnesiac busty operative's desperate gunfights…”Recommended · Steam review · Dec 2025 · 58 h played
300 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology