Screenshots
Watch trailer on Steam ↗Lucifer Within Us
Kitfox Games · Published by Kitfox Games · Official site ↗
Content notice: May include stylized depictions of or textual reference to violence, self-harm, cannibalism, and/or substance use.
Mostly Positive — 74% positive (767 reviews) · Metacritic 76 · 12 achievements
Last updated 27 Sept 2026
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.
£17.75
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, Strategy · 2020 · More £15 - £30 games
Delve into a complex murder mystery where strategic thinking meets spiritual purification. Unravel the truth behind three gruesome killings by examining testimonies for hidden sins, then cleanse the possessed of their daemons in this unique indie strategy experience.
About this game
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.
Investigate timelines.
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.
Real mystery-solving.
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.
Banish daemonic A.I.
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.
Expose the False Utopia.
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.
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7
- Processor: Intel Core 2 Duo or equivalent
- Memory: 2 GB RAM
- Graphics: NVIDIA GeForce 740 or equivalent
- DirectX: Version 11
- Storage: 2 GB available space
Recommended
- OS *: Windows 8/10
- Processor: Intel Core i5 or equivalent
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce 1050 or equivalent
- DirectX: Version 11
- Storage: 2 GB available space
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
Take a trip to hell and back
We’re celebrating summer in hell this year with a special 80% off discount on Lucifer Within Us! The game is also part of the Short Games Showcase on Steam featuring a variety of snack-sized games. Our friends at A Sharp are also here with us in the inferno because they’ve just announced Thousand Hells: The Underworld Heists, a procedural narrative RPG. If you’re reading this, you’re probably into the dealings of Lucifer. I mean who isn’t? And if you're into tense tactical battles and learning the new rules of different hells in all their flavors, then this might be for you. You can watch the announcement trailer here and wishlist the game on Steam now: https://store.steampowered.com/app/3794210/Thousand_Hells/ See you in hellRead full article on Community Announcements (Not Alex)AnnouncementsOfficial
Kitfox Celebrates Turning 10 Years Old!
In honor of our first decade of game development (hopefully the first of many), Kitfox is offering streams, discounts, and general frivolity in our Steam publisher sale! Behold, Lucifer Within Us is 55% off for the first time (tell your friends and enemies!), but also ALL of our titles are ready to be snatched up, whether you're motivated by greed, lust, or even sloth. One click can get you sexy, valuable entertainment for a lower price than ever before! {STEAM_CLAN_IMAGE}/35216648/812ede238b9f14724fca81b63ca22903a7831970.png And for more details on the Kitfox path through our 10 years, we wrote a little guide to how we got here. Keep an eye on us, because we're only just getting started! With grace, Inquisitor Tanya, Alexandra, and the Order of KitfoxRead full article on Community Announcements (kiwihotaru)AnnouncementsOfficial
Celebrate 9 years of Kitfox Games!
Single-player or co-op, horror or cute, romantic or funny, roguelike or mystery -- we have something for everyone! Starting from this very moment, the whole Kitfox catalogue is on sale to celebrate the company's founding, a whole nine years ago. We'll also be streaming schedule with our developers and special community guests, from today and going all week! Our plan is to stream most days at 2pm Eastern time, either here on Steam or on Twitch, with this schedule: {STEAM_CLAN_IMAGE}/35216648/711ad5117f73f3810e0bb9181dc91e124453e8e3.png So come with all your questions and pick up a few cool indies for your library! -Alexandra + TanyaRead full article on Community Announcements (Not Alex)AnnouncementsOfficial
LudoNarracon highlights 3 Kitfox games' unique storytelling
All weekend, LudoNarraCon is showcasing various games with interesting storytelling in their gameplay, including 3 Kitfox games: Lucifer Within Us, Six Ages, and Fit For a King! Tune in to the event to learn more about storytelling techniques and approaches from various cool games, from Darkest Dungeon to Dwarf Fortress. Check it out: {STEAM_CLAN_IMAGE}/35216648/28aece31ed3d4de3f45b00a9338b2e9fb0843d57.png Thanks for playing! Tanya & the Kitfox crewRead full article on Community Announcements (kiwihotaru)AnnouncementsOfficial
New Exorcist Discounts: Moon Hunters, Shrouded Isle, and more!
Welcome back, exorcist. We have identified new investigations for you to pursue, at your leisure. You see, by the blessings of Ain Soph, all Kitfox games are on sale, and at a special discount for the initiated such as yourself, who already own Lucifer Within Us. For example, The Shrouded Isle (by the same designer) is 75% off for even the lowliest sinner, but through the Kitfox bundle, you would get an additional 15% off! Truly, it is a day to celebrate. {STEAM_CLAN_IMAGE}/35216648/a69a08e99ea9d7ff7f9d615bf87a221866801ec3.png Blessings upon you, this year and every year, Sister Tanya & the Order of KitfoxRead full article on Community Announcements (kiwihotaru)
