Steam market intelligence
[Chilla's Art] Night Security | 夜間警備
89% positive · 1,002 Steam reviews · released Jun 16, 2023 · by Chilla's Art
HorrorPsychological HorrorImmersiveAtmosphericAdventureCasualImmersive Sim3D
What it likely sold — estimate, stated as a range on purpose
Lifetime units: ~38k
(P10–P90: 15.2k – 83.7k)
Gross revenue: ~$249k
(P10–P90: $99.7k – $548k)
Estimate, method v1.0 — before Steam's ~30% share, refunds and VAT. The band approximates where about 8 in 10 comparable games land in published studies; some sit outside it. Our own hit rate goes on the accuracy ledger once measured. How we estimate
Estimates are statistical inferences from public data. They are not sourced from Valve or the developer and may deviate materially from actual results. Do not rely on them for investment or contractual decisions. As of Oct 1, 2026.
Player voice — measured shares of Steam thumbs, never a model
Story & writing77% positive · 57 mentions
“In Night Security, players step into the role of a security guard tasked with patrolling a building floor by floor. Your nightly duties include locking rooms, turning off running toilets, and checking fire alarms. Once all tasks on a floor…”
Recommended · Steam review · May 2025 · 2 h played · Report / request removalVisuals & audio91% positive · 55 mentions
“In Night Security, players step into the role of a security guard tasked with patrolling a building floor by floor. Your nightly duties include locking rooms, turning off running toilets, and checking fire alarms. Once all tasks on a floor…”
Recommended · Steam review · May 2025 · 2 h played · Report / request removalGameplay & mechanics67% positive · 27 mentions
“Night Security is another atmospheric horror release from Chilla’s Art, the Japanese independent studio responsible for numerous psychological horror experiences built around realism, tension, and environmental storytelling. Serving as…”
Recommended · Steam review · May 2026 · 10 h played · Report / request removalPrice & value76% positive · 21 mentions
“In Night Security, players step into the role of a security guard tasked with patrolling a building floor by floor. Your nightly duties include locking rooms, turning off running toilets, and checking fire alarms. Once all tasks on a floor…”
Recommended · Steam review · May 2025 · 2 h played · Report / request removalPerformance & stability62% positive · 13 mentions
“Okay. This game has me at mixed feelings about how this was developed. The pros were that this was satisfactory as a short horror game with good jumpscares and scenes that gave you the creeps. You wanted to see what would be the endgame…”
Recommended · Steam review · Aug 2025 · 1 h played · Report / request removal311 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology
Reviews are shown as published on Steam, including reviews from key activations and free copies — so percentages here can differ from the score on the Steam store page. GameTrend does not check whether reviewers bought or played the game.
Game DNA — store facts, community tag votes, labeled AI inference
Perspective
First-person
Technology
3D
Art style
Realistic
Setting
Fantasy
Mood & themes
HorrorAtmosphericDark
How you play together
Single-player
Platform features
Achievements
Business model
Buy to play
Sources: Valve store fields · community tag votes · AI-inferred values are marked and drawn from a fixed vocabulary.