Boilerworks

What is Boilerworks?

Boilerworks is a single-player card game built around one absurd, impressive steam engine. The run is steampunk in setting and strategic in practice: cards go into the machine itself, with up to three cards dropped from the hand into the console. Each part influences the spark travelling along its line. Dynamos increase power, Coils multiply it, and Furnaces send heat into the shared boiler. Before committing, a preview shows the exact result of the current setup. Pulling the crank then plays out the engine part by part until the work lands in the register.

Heat remains in the boiler between cranks, so pressure carries forward. Reaching the heat limit mid-crank causes a blowout; the crank stops and the part that caused it is knocked off. Some builds lean into that risk instead: Turbines run on heat, Heat Exchangers cash it in, and a Safety Valve converts a blowout into the biggest crank of the run. The Windows full game is paid, while a free demo is available for Windows or directly in a browser.

How to play

A hand of cards is placed into glowing sockets on the engine console, with a maximum of three placements. The order matters because each part changes the spark on its line. The preview is not an estimate; it is the outcome, so the main decision is which cards to place and which to hold. Heat is the shared resource to watch. It stays in the boiler between cranks, which means a strong crank can make the next one riskier.

Reaching the limit during resolution causes a blowout, stops the crank and knocks off the part responsible. Building around heat can turn that danger into value through Turbines, Heat Exchangers and a Safety Valve. Between contracts, the workshop is where the machine grows: favorite parts can be bolted on permanently, parts and gadgets can be bought, cards can be tuned, and unwanted cards can be scrapped. The run spans three acts and twelve contracts. Every fourth contract is an Inspector with a rule-bending modifier that is shown before the fight begins.

Controls

The browser demo and Windows versions use mouse and keyboard. Drag a card onto a glowing socket, or click a card and then click a socket. A placed card can be returned by dragging it back to the hand or right-clicking it. Right-clicking a hand card marks it for Redraw. Space pulls the crank, and the crank lever also works by click. Tab cycles playback speed through 1x, 2x, 4x and Instant. Clicking during a crank skips to the result.

R redraws marked cards, P opens the parts drawer, E opens the workshop editor, Esc pauses, and Enter confirms in the workshop. Hovering a card enlarges it; the mouse wheel scrolls the list under the pointer. The crank and speed keys can be rebound in Settings. UI scale, volume, reduced motion, reduced flashing, tutorial hints and tutorial replay are available as options; Windows adds fullscreen and V-Sync.

Tips for your first run

Treat the preview as the decision point, not the crank animation. Resolution has no randomness once cards are down, so a player should tune the sockets until the shown result is worth committing. Heat is the hidden cost of a strong turn: it stays in the boiler, and a blowout during a crank stops progress and knocks off the part that hit the limit. A first run should learn when to leave a socket empty rather than force a third card. Mark weak or unwanted hand cards for Redraw before pulling, and remember the Inspector appears every fourth contract with a modifier shown in advance. In the workshop, permanent additions matter more than broad collecting, so bolt on parts that support the chosen kit.

• Watch the boiler after every crank; carry-over heat changes what is safe next.
• Use the preview to test routing before spending a redraw.
• Build a heat plan with Turbines, Heat Exchangers or a Safety Valve before pushing close to the limit.
• Read an Inspector modifier before starting that contract.
• Scrap and tune cards in the workshop rather than keeping a bloated deck.

Content and replayability

The structure gives a clear arc: three acts, twelve contracts and three Inspectors, with an Inspector arriving every fourth contract. The part pool includes twenty-six parts alongside fourteen gadgets. Four starting kits give different emphases: one leans on heat, one on timing, one on routing, and one is balanced. Each kit also has a five-level Pressure ladder that opens once a win has been recorded with that kit. Unlocks come from doing interesting things rather than grinding a currency, and the Codex records parts and combos as they are discovered.

The full Windows edition includes all three acts, all four kits, every part and gadget, Pressure 1 through 5, the Codex and the Grand Exposition ending. The free demo is narrower: Act 1, the Tinkerer's kit, the guided start, four contracts and the first Inspector. A Windows demo save can be carried into the full game on the same Windows user and computer by choosing Continue demo progress; browser demo progress stays in the browser and does not transfer.

Presentation and performance

Boilerworks presents its engine in 3D and leans on a steampunk card-game look. The crank resolves in visible stages, and playback can be set to 1x, 2x, 4x or Instant, with a click during a crank skipping to the result. Reduced motion and reduced flashing options are available, along with master, music and sound-effect volume controls and UI scale from 85 to 130 percent. Tutorial hints can be toggled and the tutorial can be replayed.

The Windows build is 64-bit; unzip it and run Boilerworks.exe, or BoilerworksDemo.exe for the demo. Windows adds fullscreen and V-Sync. The browser demo is tested in desktop Chrome and Edge and needs a mouse and keyboard; it is not made for phones or tablets. Everything is fully offline, with no account, ads or microtransactions. Browser progress is saved in that browser and can be lost if site data is cleared.

Who should play it

This is for players who like deckbuilders where the deck feeds a working engine. The appeal is in routing a spark, multiplying it with Coils, and deciding whether a Furnace's heat is fuel or danger. Players who enjoy optimization will like the exact preview and the lack of resolution randomness; players who prefer reactive luck will find that uncertainty lives in the draws, salvage and shop. The steampunk machine theme and the workshop's permanent tinkering should suit anyone who wants a run to leave a mark on the engine.

Single-player, offline play and no microtransactions make it easy to start. The free browser demo is a low-commitment way to try Act 1, the Tinkerer's kit, four contracts and the first Inspector before moving to the paid Windows edition.