Firmament

Firmament is a first-person PC puzzle-adventure from Cyan Worlds, the studio behind Myst and Riven. The current Steam and GOG storefronts still use the name Firmament, with no verified rebrand, replacement edition, or renamed PC version. It combines exploration, environmental machinery, narrative mystery, and optional VR play across three interconnected Realms.

A first-person puzzle world built around the Adjunct

Firmament begins with exploration rather than combat or conventional quest markers. You investigate an apparently abandoned world, study its enormous machines, and gradually work out how its infrastructure fits together. The central loop is simple: observe a mechanism, identify the missing connection or operating principle, use your tools, and return to the environment with a clearer understanding of how the system works.

Your primary interface is the Adjunct, a remote device that can be aimed at sockets and machinery throughout the Realms. Instead of collecting weapons, inventory items, or character upgrades, you use the Adjunct to activate, connect, redirect, and manipulate devices. The game therefore rewards spatial reasoning and careful observation more than reflexes.

The camera remains first person in both standard display and VR play. Movement through the environments is deliberately measured, giving you time to inspect machinery, read documents, follow visual clues, and notice how one structure relates to another. Players who enjoy environmental deduction and self-directed exploration will find a closer structural comparison in first-person logic adventures such as The Witness, although Firmament places more emphasis on machines and world-building than on abstract puzzle panels.

Three Realms, one connected mystery

The world is divided into three distinctive Realms associated with the larger Firmament Project. Curievale presents an icy industrial environment, Juleston is shaped by mines and power infrastructure, and St. Andrew introduces a warmer setting with its own mechanical language and visual identity. Each area has different scenery and machinery, but they are connected by a wider question: who built this system, why was it abandoned, and what role does the player occupy within it?

Travel between the Realms is not just a change of scenery. The environments function as layered puzzle spaces, with large structures often serving as both landmarks and mechanisms. You may need to understand a machine in one location before another path, elevator, vehicle, or device becomes meaningful elsewhere.

The narrative is delivered through environmental details, written material, the mysterious Mentor who accompanies the player, and the gradual restoration of dormant systems. Firmament does not treat its story as a sequence of exposition-heavy missions. Its approach is closer to an investigation, where the setting's architecture and machinery provide as much information as direct dialogue.

Mechanical puzzles and exploration systems

Firmament's puzzles are based on operating devices rather than solving a single repeated minigame. The Adjunct can be placed into compatible sockets, switched between interaction modes, and used to trigger different actions. Progress often depends on recognizing the correct relationship between a socket, a machine, a power source, and the surrounding environment.

Several puzzles involve large industrial assemblies, power systems, transport mechanisms, and routes through complex structures. The game expects you to examine the whole space instead of focusing only on the object directly in front of you. Sightlines, access points, machine states, and the order in which you activate components can all matter.

A secondary tool, the Cavitation Hammer, becomes relevant in specific underwater or submerged sequences. It is used to break apart obstructing debris while wearing the appropriate dive equipment. This gives certain areas a different interaction rhythm without turning Firmament into an action game.

There is no combat, stealth system, character leveling, or loot economy. The progression loop is knowledge-based: once you understand how a system works, you can apply that insight to unlock the next section. Players looking for a more traditional Myst-style world with modern free movement may also appreciate large-scale first-person puzzle exploration in Riven 2024 Remake, while Firmament remains more focused on its own machinery and VR-compatible interaction model.

Content model and available editions

Firmament is a paid single-player game rather than a free-to-play service. The standard PC edition contains the main puzzle-adventure experience across its three Realms. The storefronts also list optional bonus products, including the Original Soundtrack, Digital Strategy Guide, and Digital Art Book.

Steam additionally offers The Keepers' Bundle, which combines the game with the soundtrack, strategy guide, and art book. These extras are supplementary and are not required to access the core exploration or puzzle content. GOG lists a standard edition and a comparable Keepers' Bundle, with the GOG version presented as DRM-free and playable without requiring GOG Galaxy.

There is no verified season-pass structure, multiplayer content model, or competitive service attached to Firmament. Its content is authored around one mystery and one progression path rather than repeatable online activities.

Who Firmament suits on PC

Firmament is aimed at patient solo players who enjoy reading environments, testing mechanisms, and solving puzzles without combat pressure. It is a strong fit for fans of Cyan Worlds, atmospheric science-fiction or steampunk settings, first-person exploration, and games that make the world itself the main interface.

The game is less suitable if you want fast traversal, constant dialogue, action systems, or a progression tree filled with upgrades and rewards. Its pace is intentionally quiet, and much of the satisfaction comes from recognizing a machine's logic rather than receiving immediate feedback from a quest system.

VR players should also understand the design choice. Firmament supports VR, but it is not restricted to a headset, so the same adventure can be played on a conventional 2D display. The VR presentation increases the sense of scale and makes aiming the Adjunct feel tactile, while standard play can be more convenient for long exploration sessions or players who prefer a monitor and gamepad.

PC controls, VR support, and storefront details

The PC version supports mouse and keyboard, Xbox-style gamepads, Steam Deck controls, and tracked VR controllers. The manual documents dedicated control layouts for mouse and keyboard, Xbox gamepad, Steam Deck, Meta Quest through Oculus or SteamVR runtimes, HTC Vive, and Valve Index hardware.

VR includes both Free Roam and Teleport navigation. Comfort options include smooth or snap turning, quick travel on ladders, vertical height adjustment, a safe-spot teleport option, vehicle-transition controls, and adjustable movement orientation. These settings give players more control over how they move through the Realms.

Steam lists single-player support, achievements, captions, Steam Cloud, controller support, and Remote Play on TV. GOG provides an offline installer model without mandatory Galaxy use. English includes full audio, while the PC storefront listings provide interface and subtitle localization for French, Italian, German, Japanese, Korean, Polish, Brazilian Portuguese, Russian, Simplified Chinese, and Latin American Spanish.

No multiplayer, online co-op, split-screen mode, or competitive matchmaking is listed for Firmament. The experience is designed for one player, whether played flat-screen or in VR.

Firmament FAQ

Has Firmament been renamed on PC?

No verified name change was found. The current Steam and GOG listings use Firmament, and the official Cyan Worlds page also presents it under that name.

Is Firmament a VR-only game?

No. Firmament supports both standard 2D display play and VR. On PC, you can use mouse and keyboard, a gamepad, or supported tracked VR controllers.

Does Firmament have multiplayer or co-op?

No. It is a single-player puzzle-adventure with no official online co-op, split-screen mode, or competitive multiplayer.

What is the Adjunct used for?

The Adjunct is the player's main interaction tool. You aim it at sockets and devices, select available actions, and use it to operate the machinery that controls access and progression throughout the Realms.

What is included in The Keepers' Bundle?

The Keepers' Bundle includes the base game, the Original Soundtrack, the Digital Strategy Guide, and the Digital Art Book. The standard edition contains the main Firmament adventure without those additional extras.

Which languages are available on PC?

English has full audio. Interface and subtitle localization is available in several additional languages, including French, Italian, German, Japanese, Korean, Polish, Brazilian Portuguese, Russian, Simplified Chinese, and Latin American Spanish.