
Solve 3 increasingly intricate murders by examining the evidence -- find the motive, the means, and the opportunity. Use testimonies of the suspects as evidence by examining every detail for contradictions... and signs of sin. Purify the possessed. Purge the daemons.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.13/day in the week to Aug 3 → 0.71/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,402 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Everyone is a suspect. Unmask their lies. Choose one to purge.
Lucifer Within Us asks you to solve player-directed, story rich mysteries with your wits, making observations and deductions in a world of daemonic possession and invasive soul-scanning technology.
From the creator of The Shrouded Isle.

Question your suspects. Watch their movements and testimonies closely, as the reconstruction may be based on lies. Use contradictions and clues to form your own hypothesis. Who is lying and why? Who is possessed? You must decide what is the truth for yourself, based on the evidence presented.
No hidden plot twists, no QTEs, no random puzzles or mini-games, just you and the information. In all 3 cases, don’t just act like a detective -- BE a detective. Finding the murderer will require true understanding of the case, not just following the story.

Enter the minds of citizens to gain insight into what they don’t want you to know. Dig through their subconscious and accuse the guilty in order to cast out their daemons, for the good of the Inquisition. Any damage done to a citizen’s psyche as a result of quarantine, exorcism, or rehabilitation is a consequence of their own immorality.
Through centuries of indoctrination, humanity is taught to think pure thoughts and speak true words, untainted by falsehoods and delusions. Yet beneath this facade of purity, you find dark desires stir deep within people’s hearts, yearning for release.

As a digital exorcist working for the Church of Ain Soph’s Inquisition, it is your duty to find sinners and ensure continued harmony. Digital daemons corrupt the network cause human hosts to act on secret desires and sins, even unto murder. Discover the One Truth to determine which citizens are infected and exorcise the possessed.

Built on the rubble of the Old World, the last human city has become a utopia of progress, digitization, and art. The Church guides citizens towards advancement and Truth with the aid of a digital consciousness network.
Use all of the tools at your disposal to find the truth, wherever it may hide… and beware the lies you tell yourself.
Engagement
Reviews
Themes across 55 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
First off, the mechanics of how you solve the cases is fantastic. I adored how this game pulled that off. Very interesting characters, good writing, and the cases really required me to think to solve them. What was the problem? I couldn't ever finish the game. It isn't optimized right and it kept overheating my PC. I searched and searched for a way to fix this, only to find quite a few threads of people having similar issues and sadly been going on since it dropped. As that bug has been reported dozens of times, I guess I'll just wait until they fix it. Because I can't play when it overheats my rig. if this bug is ever fixed I'll change my review to recommended. Until then, be safe folks who don't have the fastest, high powered rigs possible.
Great detective game set in an interesting sci-fi world. The only negative is that it's too short
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French*, German, Japanese, Portuguese - Portugal, Simplified Chinese, Korean*languages with full audio support
Hours played at review time, across 55 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
good if short. good value
What a super cool detective game! I only wish there was more game to play
It's an interesting game and setting. I wish it was longer, which on balance I think is a good sign.
美术风格和玩法都很吸引我,无试错成本的指控和反驳让推理如德芙般丝滑,自动时间轴更是堪比天眼。虽然回头一看答案都摆在谜面上了但勘破谎言的那瞬间依旧无比舒适。立绘和ui非常有质感,有自己独立的美术风格,完全不输大游戏。就是实在太短了像试水作,打折入值。
Short but fun. A good story, great visuals and a nice little detective game.
I personally really enjoyed my time with this game. I had a very good time with the deduction sections of the game, and I could overlook most of the rough edges that made themselves known in gameplay (audio issues, primarily). I thought that the story and general aesthetic was fascinating, but it wraps itself up very quickly. I'm sure there was some sort of rushed deadline, unfortunately. That being said, I can't say I would recommend the game at full price, and I really don't often think that. But for the runtime being so short, $20 is a hard pill to swallow. I was gifted this game while it was only $3, and while it was a very fun gameplay loop, it's abrupt end left it on a sour not. I really do like this game, don't get me wrong, but I would've been extremely disappointed to have paid for it at full price for what I got.
The game mechanics are quite awkward. Sadly, What little I saw of the world/lore was intersting but sadly, I didn't feel like an investigator.
1. Gameplay Spielmechaniken (flüssig, repetitiv, innovativ?) -> Sehr innovativ. Wenig solche Spiele gesehen. Steuerung & Responsiveness: Die Steuerung ist etwas holprig da man erster verstehen muss was man in welcher Kombination (Befragen, Prüfen und WIederlegen) man die Zeitleiste, Tatbestände anklicken muss. Schwierigkeitsgrad / Balancing: Schwer da man einen kompletten Überblick über das Szenario haben muss. Im Laufe der Zeit ist aber Learning Progession vorhanden und man kommt vorran. Das Balancing ist gut gemacht. Kann aber notfalls durch klicken aller Möglichkeiten auch voran kommen (macht aber weniger Spaß) 2. Story & Atmosphäre: Story ist sehr solide aber Hinnehmbar. 3. Grafik & Design: Der etwas Comic Grafikstil ist in Ordnung und reicht aus um eine gute Stimmung und Immersion zu erzeugen Für wen ist das Spiel geeignet? -> Für Gamer auf Krimis stehen und bisschen tüfteln möchte ohne irgendwelche hilfreichen Hinweise. Eine gute prise Geduld muss man schon mitbringen. Klare Empfehlung
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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