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When the truth is buried, go underground. Step into this new take on text-based adventure from the award-winning team behind Thomas Was Alone and Volume. A short story that hands you the fate of the world above, as a detective looking for answers on the Subsurface Circular.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
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A detective stationed on the Subsurface Circular investigates a series of disappearances among the city’s robotic working class. Collect words and phrases, then use them in dialogue puzzles to uncover the world's secrets and determine its future.
This self-contained short story takes around two hours to complete and is split into several chapters. You can play the game in one sitting or, if you prefer, unfold the story in smaller pieces that can fit into a busier schedule.
Subsurface Circular is inspired by classic adventure games and modern dialogue systems, and developed by the award-winning team behind Thomas Was Alone and Volume.
Key FeaturesA polished, one-sitting game.
A graphical twist on the classic text-based adventure.
Uses 'Focus Points', a unique vocabulary-based inventory system.
Original soundtrack by Dan Le Sac.
Comprehensive art gallery featuring the detailed work that went into this world.
Unlockable ‘BithellBot’, our interactive take on a developer’s commentary.
If this game is ‘short’, what’s to stop me getting a refund when I’m done?
You’re browsing Steam, which means you understand the work that goes into games, and are in principle up for paying for ones that entertain you. We hope that after a bit of time with Subsurface Circular, you’ll feel good about the price you paid.
Why is the game only available in English?
As you can imagine, a text adventure game contains a terrifying amount of text, but more importantly, throughout the game we use the particular quirks of word ordering and double meaning in English to support the combination and recombination of threads. Put simply, other languages are going to be more than a straight translation: They’re going to need rewrites and changed design. Not impossible, but more than we could get done this time around.
Lowest tracked price: £1.62 (Jul 16, 2026) · current best: £1.63 across 4 stores.
94% positive reviews all-time · 2 peak players in the last 30 days.
Right now the cheapest offer for Subsurface Circular is £1.63 at Gamivo. KingsPrice compares 4 offers from 4 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Subsurface Circular is £1.62 (recorded on Jul 16, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Subsurface Circular peaked at 2 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
Create a free price alert on this page and KingsPrice will email you when Subsurface Circular drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
