Steam app 754890 · updated 12 Sep 2026, 23:55 UTC
Firmament is a new puzzle-adventure game by the legendary game studio behind the best-selling games Myst and Riven. Featuring deep storytelling and world-building, discover the story of this seemingly abandoned world as you explore and unlock the mysteries of 3 unique Realms… and beyond!
254 hourly samples, with the daily peak drawn over them. Weekends are shaded.
41 months, May 2023 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 153 hourly samples from 14 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 101 hourly samples. Each dip is a night. Weekends are shaded.
Firmament was released on 18 May, 2023.
| Language | Full audio |
|---|---|
| English | ● |
| French | |
| Italian | |
| German | |
| Japanese | |
| Korean | |
| Polish | |
| Portuguese - Brazil | |
| Russian | |
| Simplified Chinese | |
| Spanish - Latin America |
A blank audio cell means full audio was not marked in the returned language list.
Firmament Official Launch Trailer
Watch on Steam
Firmament Official Cinematic Trailer
Watch on Steam28 achievements in total.
19 developer announcements, Apr 2023 to May 2026 · times in UTC
Firmament is featured in the 2026 Cerebral Puzzle Showcase, running from May 28th to June 4th! To celebrate, we’re offering a big 40% discount on the game plus its DLC (excluding soundtracks). Explore the secrets of the Firmament…
HannahGlobal Features Added support for displaying a PlayStation controller, tutorials, key icons, etc. when using a PlayStation controller on Windows. MinorFixed some floating debris appearing in the camera’s view when it should not be seen.(PC…
Patch notesGlobal Major Fixed the credits screen getting cut off at the bottom depending on your window resolution.Fixed ladders being disabled if you interact with a ladder while the adjunct is socketed. Minor Added improvements to gamepad cursor…
Patch notesGlobal Major Fixed an instance where the cursor might have issues when returning from the in-game menu. (VR only) Fixed the adjunct UI not remaining in sync with the player on fast-moving things like elevators. (Mac only) Re-enabled SM5 RHI…
Patch notesFirmament is featured in the 2025 Cerebral Puzzle Showcase, running from May 29th to June 5th! To celebrate, we’re offering a big 40% discount on the game plus its DLC (excluding soundtracks). Explore the secrets of the Firmament today!
HannahGlobal Features Auto detect now supports auto-setting appropriate supersampling settings based on your scalability settings and platform type. (Windows only) DLSS updated to version 4.0. (Windows only) Added support for TSR and XeSS…
Patch notesGlobal Integrated a fix from Epic for a potential crash that could occur on certain Windows machine configurations on a subsequent startup after already playing the latest patch with ray tracing enabled. Fixed a random crash that could…
Patch notesGlobal Fixed potential crash that could occur on certain Windows machine configurations on a subsequent startup after already playing the latest patch with ray tracing enabled Minor hitch performance improvements
Patch notesFirmament Patch 2.0 Hello, everyone! Firmament version 2.0 is here with some big stability updates, tech-adds, improvements, and more to make your experience playing Firmament even better. This update is a beefy one, and we’ve tried to…
Patch notesFirmament is in the Cerebral Puzzle Showcase for 15% off! Buy Firmament for yourself (or for a friend!) for a limited time only!
HannahFirmament Release Notes 1.2.0 (e9979-p17748) Hey folks! Thanks for playing Firmament. We’ve got a lot of great fixes for you today. Here’s the list: Fixes Global Fixed a crash that could occur at a sweet spot during a re-attempt to engage…
Patch notesFirmament Release Notes 1.1.1 (e9894-p17646) Hey folks! Thanks for playing Firmament. We know that we just shipped Patch 4 literally one day ago, but we were so excited to get you another patch, we got one prepared today as well! Here’s the…
Patch notesFirmament Release Notes 1.1.0 (e9862-p17640) Hey folks! Thanks for playing Firmament. We’ve got a lot of great fixes for you today. Here’s the list: Features Adjunct returns to the player at 2x the speed now. Added localized textures for…
Patch notesFirmament Release Notes 1.0.6 e9794-p17477 Hey folks! Thanks for playing Firmament! :D We’ve got a lot of great fixes for you today. Here’s the list: Features Various VFX added to spire controls. Various VFX added for sulfur dumps in…
Patch notesFirmament Release Notes 1.0.3 e9770-p17406 Hey folks! Thanks for playing Firmament! :D We’ve got a lot of great fixes for you today. Here’s the list: Adjusted some meshes around the large crane area in Curievale to help alleviate some…
Patch notesFirmament Release Notes 1.0.0 e9752-p17329 Hey folks! Thanks for playing Firmament! :D We’ve got a lot of great fixes for you today, including a fix for speeches not playing in certain cases. Here’s the list: Fix for the speeches in the…
Patch notesThe day has arrived... The time is now! Firmament, the new puzzle-adventure game by the legendary game studio behind the best-selling games Myst and Riven - Cyan Worlds. Featuring deep storytelling and world-building, discover the story of…
JLanceHey Friends! We just got amazing news, and because TONS of you have asked we wanted to let you know... Firmament is OFFICIALLY Steam Deck verified! Tell your friends, and if you haven't yet... Please wishlist NOW: Steam…
JLanceNew store page, new trailer... new EVERYTHING for our upcoming puzzle-adventure game Firmament... Firmament will release on May 18th! Firmament is a new puzzle-adventure game by the legendary game studio behind the best-selling games Myst…
JLanceEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| Firmament - Digital Strategy Guide | WindowsmacOS | 18 May 2023 |
| Firmament - Digital Art Book | WindowsmacOS | 18 May 2023 |
| Firmament Original Soundtrack | WindowsmacOSLinux | 18 May 2023 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Firmament.exe | -d3d12 -nohmd | windows 64 | |
| Proof of Concept in VR | ProofOfConcept/Firmament.exe | -launchinvr -vr | windows 64 | branch proofofconcept |
| Launch | Firmament.app | macos | ||
| Proof of Concept | ProofOfConcept/Firmament.exe | -d3d11 | windows 64 | branch proofofconcept |
| Firmament in VR | Firmament.exe | -vr | windows 64 | |
| legacy MacOS < 14.5 build | Firmament/Binaries/Mac/Firmament-Mac-Shipping.app | macos | branch rollback_macos_under14-5 |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocal | Firmament/Saved/SaveGames | *GameState.sav and below |
WinAppDataLocal | Firmament/Saved/Images | *.png and below |
MacAppSupport | Epic/Firmament/Saved/SaveGames | *GameState.sav and below |
MacAppSupport | Epic/Firmament/Saved/Images | *.png and below |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG