
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 2,400 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 54 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Definietly only buy this one on a sale. It is much too short for the high price, and some of the stuff, especially voice acting, seems unfinished. I wouldn't be surprised if a deadline came earlier than the devs expected. If it were longer, I'd be able to recommend it for sure, though
This is a fun, though *very short* game. A mix of far-future technology, faith, and mystery, which definitely whetted my appetite for more. . . but the game consists of being walked through the starter case, and two more cases, and then *it's done*. Definitely catch this marked down on Steam sale; the art is delightful, and I enjoyed the world-building and voice acting. But so, so short. :P
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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 54 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
This was VERY impressive. Cases were great, straight forward, but still made you think and experiment a little. As people mentioned, this is really like the prolog or introduction into what would be a larger story. I picked it up on sale for 4 dollars, and it was worth it for that amount of entertainment. 20$ as the base price is an absolute rip off. Its a shame too, because a longer game of this quality would have been fantastic.
A cool spin on the detective game formula which allows you to track and cross-reference timelines of up to 3 characters' versions of events. Very short story and hilariously rushed ending. Not bad for $3 though.
Not very long, but a good roster of well-crafted mysteries. The timeline system is very unique, and I appreciate that there are multiple ways to reach the right answer.
Nice story. Mid gameplay, the game is very short and all levels feel the same
intriguing mechanics that make for a unique experience with some good visual art yet the mysteries in each of the cases feel as shallow as the predictable culprits. Very disappointed by this one
Absolutely gorgeous. Would love to play more games like this. The story left me wanting to dive deeper.
I remember getting this in a bundle, but even then it’s hard to say whether the price was justified. When you take into consideration that the first case is essentially a tutorial level with quite a bit of hand-holding, you’re left with only two cases to investigate. Lucifer Within Us has a nice art style, and the whole timeline mechanic is a novel feature. Once you get the hang of it, though, the game ends on what feels like a cliffhanger. That’s especially frustrating given how short it is. I’m usually happy with shorter games, as long as the story feels at least somewhat resolved or satisfying. That isn’t the case here; [b]it feels deliberately unfinished.[/b] It’s been over five years since release, with no news of a sequel in development, so these three short cases are all you’re going to get. This is a shame, as it feels like the prologue to a bigger story that, at full or reduced price, doesn’t seem worth it in the end.
Good detective game with a unique setting. I wish there were more cases. And remember to click on the head after unmasking a lie, I forgot to do that once and was stuck for a long time.
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Players by region
Where this game's players are, estimated from review languages.
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