What it likely sold — estimate, stated as a range on purpose
Lifetime units: ~10,857
(P10–P90: 4,343 – 23,885)
Gross revenue: ~$133,452
($53,383 – $293,590)
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: 89% positive across 113 stored reviews. Adventure games with 100+ reviews typically sit around 86% (median of 4160 games).
Story & writing90% positive · 155 mentions
“I really like what's here, but the stuff ripped from Danganronpa THH is so blatant it's a bit insulting. If the whole game is using Danganronpa to prop itself up, I feel like it's more of an insult to the pretty well crafted narrative than…”Recommended · Steam review · Apr 2026 · 10 h played
Visuals & audio89% positive · 85 mentions
“I really like what's here, but the stuff ripped from Danganronpa THH is so blatant it's a bit insulting. If the whole game is using Danganronpa to prop itself up, I feel like it's more of an insult to the pretty well crafted narrative than…”Recommended · Steam review · Apr 2026 · 10 h played
Gameplay & mechanics87% positive · 67 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
Price & value84% positive · 31 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
Performance & stability84% positive · 25 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
Controls & UI85% positive · 20 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
Difficulty & balance94% positive · 18 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
Content & longevity69% positive · 16 mentions
“It's time to begin the experiment... :o Introduction Kumitantei: Old-School Slaughter is a murder mystery visual novel developed by Mango Factory and published by Akupara Games. You take on the role of Himari Sanada, a female teen who is…”Recommended · Steam review · Apr 2026 · 20 h played
271 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology