Subsurface Circular

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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.

Developer: Bithell Games
Released: 17 Aug 2017
Price: $5.99
Platforms
Followers: 6,169
Steam Deck: Playable
Languages: English
Metacritic: 83

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Update posts

0 posts

Posts announcing an update, tagged as patch notes or not

Last 90 days · as of 23 Oct, 17:04 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

News checked every 30 days. Observed since 23 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

All news

New Game Announcement - Vampirium: 1997
8 Jul 2026 · Community Announcements
New Bundle and Creator Keys - Bithell Games' Legacy Celebration
17 Nov 2025 · Community Announcements
Daily Deal - Subsurface Circular & Quarantine Circula, 50% Off
8 Jun 2019 · Announcement
We made another narrative short called Quarantine Circular!
22 May 2018 · Community Announcements
Subsurface Circular, nearly one month later
14 Sept 2017 · Community Announcements
Subsurface Circular, nearly one month later
14 Sept 2017 · Community Announcements
Update 2 - Secondary station bug fixes Update
19 Aug 2017 · Community Announcements
Update 2 - Secondary station bug fixes Patch notes
19 Aug 2017 · Community Announcements
Update 1 - Resolutions and missed train stops Update
18 Aug 2017 · Community Announcements
Update 1 - Resolutions and missed train stops Patch notes
18 Aug 2017 · Community Announcements

From the game’s Steam news feed, last checked 23 Oct, 17:04 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.

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