Buy Subjects of Cthullius PC Key

★ ★ ★ ★ ★

When does Subjects of Cthullius come out? The game has not reached any of the stores we track yet, so there is no price so far. Once the first offers appear we will start recording their history from release day, so later you will be able to see how the price moved from the start. Set an alert and we will write when the game goes on sale.

Release: Coming soon
Yellow House Studios
Yellow House Studios
Official
Unavailable
Keyshops
Unavailable
Buy in Official Store:
Unavailable
Buy in Keyshops:
Unavailable

No entries, but don't worry, we will inform you once the new offer appears.

Create Alert Create deal Alert

About Subjects of Cthullius

Subjects of Cthullius - about the game

Subjects of Cthullius is a single-player sci-fi adventure game that places mathematics at the center of its gameplay and narrative. Players journey through a distant solar system, assisting civilizations on multiple planets while revealing an underlying conspiracy. The experience combines exploration, puzzle solving, and interactive learning in an indie casual adventure format available on PC.

Gameplay

The core loop revolves around traveling between planets to complete missions that advance the story. Each mission incorporates puzzles, riddles, and minigames that require players to apply mathematical concepts. These elements function as abilities, allowing characters to overcome obstacles or interact with the environment in creative ways. Upgrades expand these mathemagical capabilities over time, increasing the complexity of challenges encountered.

Progression also includes interactive lessons and quizzes that tie directly into the adventure. Completing these activities unlocks rewards and new tools. The world evolves as players advance, with new areas and objectives becoming available. Allies encountered along the way provide additional abilities and story context, while opposing forces create obstacles that demand strategic use of math-based solutions.

Game Modes

The game operates entirely in a single-player format focused on narrative progression and individual exploration. Players move through structured planetary levels that integrate story missions with skill-building activities. There are no separate competitive or multiplayer modes available in the current version.

Content centers on sequential planet visits, where each location offers its own set of missions and challenges. The structure emphasizes steady advancement through an ever-expanding solar system rather than branching or replayable modes.

Story and Setting

The narrative follows an investigation into the fate of planets in a remote solar system. Players help local civilizations while piecing together evidence of a hidden threat. Eccentric characters join the journey, each contributing unique perspectives and support during key moments.

Mathematics serves as both a practical tool and a thematic element, transforming formulas into powers that influence events. The setting blends science fiction exploration with educational components, creating a world where learning drives the plot forward.

Current State and Development

Subjects of Cthullius is in Early Access, with the initial release covering the first three planets in full. Each of these locations provides complete missions and challenges from start to finish. Developers plan to expand the experience to eight planets total, adding further levels, characters, and features over time.

Future updates aim to introduce additional content based on player input. The current build focuses on core systems for exploration, puzzle solving, and ability progression across the available planets.

Is It Worth Playing?

This title suits players who enjoy story-driven single-player adventures that incorporate educational elements. The blend of exploration, puzzle solving, and math-based mechanics offers a distinct approach within the casual adventure genre. Those interested in learning through gameplay will find the interactive lessons and ability upgrades particularly engaging.

Because the game remains in Early Access, the experience covers only the initial three planets with plans for more content ahead. Players seeking a complete narrative arc may prefer to wait for further updates, while those comfortable with ongoing development can begin with the available sections and provide feedback on the systems in place.

Interface:
EnglishItalian
Subtitles:
EnglishItalian

Age rating

Unavailable
Historical low
Price history from official stores
-
-
-
Price history from keyshops
-
-
-

FAQ

8 questions

Before you start looking for a cheap Subjects of Cthullius PC key, check the essentials. Developed by Yellow House Studios. Published by Yellow House Studios. Genres: Indie, Casual, Adventure, Early Access. Categories: Family Sharing, Single-player, Partial Controller Support, Playable without Timed Input, Stereo Sound.

Q

Where to buy a cheap Subjects of Cthullius Steam key or CD key?

There are currently no active offers for Subjects of Cthullius. Set a price alert on XD.deals and we will notify you the moment a deal becomes available.

We don't have a current Steam Store price for Subjects of Cthullius. The game may be temporarily unavailable or not yet listed on Steam.

Our price tracker covers both official retailers and key marketplaces, so you can find Subjects of Cthullius on sale even outside seasonal promotions. We currently detect 0 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Subjects of Cthullius is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Subjects of Cthullius has an official page on the Steam Store, but we currently don't track any third-party offers with Steam DRM. Check back later or set a price alert.

Not at this time. Valve marks Subjects of Cthullius as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data Subjects of Cthullius is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Subjects of Cthullius deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Want to buy at the best moment? Set a price alert on XD.deals and get notified when Subjects of Cthullius hits its next historical low.

Create Alert
Join our Discord
Get instant help from our community and stay updated on the latest deals
Set Price Alerts
Get notified by email when game prices drop to your target
Create Free Account
Unlock wishlists, price alerts, and Steam sync