About the Game
Cultist Simulator is a game of apocalypse and yearning from Alexis Kennedy, creator of Fallen London and Sunless Sea. Play as a seeker after unholy mysteries, in a 1920s-themed setting of hidden gods and secret histories. Perhaps you're looking for knowledge, or power, or beauty, or revenge. Perhaps you just want the colours beneath the skin of the world.
In this roguelike narrative card game, what you find may transform you forever. Every choice you make, from moment to moment, doesn't just advance the narrative - it also shapes it.
Become a scholar of the unseen arts. Search your dreams for sanity-twisting rituals. Craft tools and summon spirits. Indoctrinate innocents. Seize your place as the herald of a new age.
In this 20-40 hour game, you'll:
Combine cards to tell your own story in a rich, Lovecraftian world of ambition, appetite and abomination. Corrupt your friends. Consume your enemies. There is never only one history.
Found a cult, dedicated to the Red Grail, or the Witch-and-Sister, or the Forge of Days. Recruit Believers and promote them to Disciples to serve as burglars, researchers, cat's-paws. Use your disciples to keep you fed - or feed on your disciples.
Unravel arcane, unacknowledged mysteries. Translate grimoires and glean their lore. Locate and pillage the Star Shattered Fane. Penetrate the realm of the Hours, and win a place in their service. Perhaps - if you are very cunning - you may even glimpse the Mansus.
Outwit rivals, investigators and the increasingly suspicious Authorities. Your own altered Appetites may force you to act abominably, but your Cause must not be stopped.
Transcend death with a story-driven legacy system. Perhaps your inheritors will complete the Rite of the Crucible Soul. Perhaps they'll find peace in a pleasing career. Perhaps they'll bring the Dawn.
Screenshots
16 images
Version Information
Steam Patch Notes
Official update history
2025.8.f.4 FULGENTIUS
Fixed a bunch of Steam Deck issues that slowly accumulated over time (and resulted in Steam Deck version becoming effectively unplayable).
In-game input hints now properly update once the relevant keybinding changes.
Consistent font size for all input hints.
The Mansus screen can be navigated with the keyboard.
Fixed some errors in Russian localisation.
Fixed the incorrect display of certain alphabetic characters.
Unity security update.
So this is another round of Chel's usual crypt-keeper updates. But the headline points are
(a) Steam Deck controls now work properly again, sorry! - and
(b) an apologetic security update from Unity!
--
I'll talk briefly about the security update, because you've probably seen, like me, a steady flow of updates in your Steam library, and most people are a bit vague about what it entails.
The short version: it's a vulnerability that seems to have been in Unity since 2017, but no one seems to have noticed or used it because it's pretty niche. So you probably dont have much to worry about even in unpatched games.
The long version: I'm not a cybersecurity bloke, but broadly as I understand it, here's how it worked. There were command line flags in any game built with Unity that could be used to tell your game to load arbitrary code, for example:
cultistsimulator.exe -overrideMonoSearchPath "C:\\somefolder\\ransomware.dll" Of course someone has to (a) get the code on to your machine or a local network path, then (b) convince you to run the relevant command line, which isn't straightforward. But on Windows, it's quite easy to register an application to open any URL in a specified format, like this
steam://getSteamToDoSomeConfigActionSo attacker tricks you into (a) registering "cultist://" as a schema and then (b) gets you to click a link like this
cultist:// -overrideMonoSearchPath "aSimpleHttpURLWouldntWorkButAttackerCouldPotentiallyGetCreativeToMakeYouDownloadAFIle"Windows tells Cultist to start running and supplies the -overrideMonoSearchPath as a launch parameter. Poor Cultist obediently tries to load the file supplied in the malicious link, maybe it works, and if it does, you're now running their code.
So again, someone still needs to convince you to run an app in the first place to register Cultist as a schema handler, maybe your AV software will flag the download, idk, but the Internet is rife with clever cyber bastards. And it's a bigger deal for a game that actually is registered as a schema handler for genuine reasons.
Either way, it's fixed now, for Cultist and a lot of other games! But there will be unmaintained games out there with the vulnerability forever, so maybe if someone's read this far, I've saved them a visit to the Misery Palace ¯\\_(ツ)_/¯
https://unity.com/security/sept-2025-01/remediation
https://www.kaspersky.com/blog/update-unity-games-cve-2025-59489/54542/
- Fixed font on Chinese menu screen proems
“The language is knotty, poetic, wilful. It'll take some untangling."
Hello cultists! It’s been a while, but we’re back with our promised new translations for Cultist Simulator. The game and all its DLC are now fully available in French and Spanish. Both languages are currently in beta here on Steam, and we’ll release them fully (i.e. tell Steam French and Spanish are **officially available**) early next month, after we’ve had some time to test them against the scariest Foe there is: YOU.
From today’s update, anyone whose OS is set to use French or Spanish will automatically have their chosen language selected when they load up Cultist Simulator. But anyone can select any language from the ‘Languages’ button on the main menu. (So French and Spanish speakers can always switch back to the original English if they prefer, too.)
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Players are the best translators because so much of Cultist Simulator depends on beautiful language and specific, referential lore. So if you are fluent in either French or Spanish, we’d love you to play the game in its new form and let us know if there are any oddities or errors.
If you find any typos or mistakes or have any other feedback, please send them to [email protected]. There may occasionally be matters of opinion (for example, which specific translation is the most appropriate for an original English term), but player feedback from people who really get the game and the lore is always incredibly useful. Thank you!
The beta will last for one month, before launching fully in early June. Thank you for your patience, and French and Spanish speakers, we hope you approve!
"Serena and Azita discuss the exploits and the disappearance of the Diarist, the Lantern-long who as a mortal was named Lars Westergren. 'He was a monster,' Serena acknowledges, 'but he was our monster.'"
https://store.steampowered.com/app/2834350/BOOK_OF_HOURS_HOUSE_OF_LIGHT/
Just a lil' cross-promo post to let you Cultist players know that we've just launched a major expansion for BOOK OF HOURS, which adds a novel's worth of new stories (and, obvs, ★☆ new lore ★☆) to the game. It's called HOUSE OF LIGHT and adds all of this to BOOK OF HOURS:
FOOD
Combine Ingredients, Sustenance, and Kitchenware items at the three Kitchen workstations to create nearly a hundred new dishes.
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A WRITING-CASE
Once you've received this gift, you can record addresses from the calling-cards left by satisfied visitors; and write to these visitors to invite them back to the House.
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SALONS
Place food and drink in one of the six Salon rooms, and then use the bell to begin a Salon. Do it right and you'll be rewarded with sparkling conversation... and Lessons.
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MANUSCRIPTS
Use Paper, Ink, and a Skill to write a Manuscript based on that skill. These Manuscripts may be necessary to satisfy thirsts for specific knowledge in FURTHER STORIES. Lessons from Salons will help you improve those Skills and write more useful Manuscripts.
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FURTHER STORIES
Once you've completed an Incident, follow it up in the Tree of Wisdoms. Visitors will need more specific help here - perhaps a book on a specific topic, or a specific book.
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THE INSTITUTE
Look for the lighthouse, out at sea. When your Visitors are ready, use it to establish the true heirs to the Curia of the Isle.
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BOOK OF HOURS is 30% off in a Daily Deal to celebrate, along with a 25% off all merch sale in the Weather Factory shop. I think that's everything that's relevant to Cultist Simulator, so - go forth! Be loreful! And if you don't at all care about any of this, I will now leave you alone! Good luck with the RNG gods in your next Cultist run. 🕯
Current Release
22090405
Uploaded Apr 17, 2026
System Requirements
How to Install
cultistsimulator.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
323 MB
22090405
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Download Cultist Simulator for PC with a direct link or via torrent. Get the full version of Cultist Simulator for free. Cultist Simulator is a Indie released by Weather Factory.