Engine Lab vs Steam Engines

Build an engine and hear it run. Engine Lab is a touch-first engine simulator: design anything from a single to a V12, then hear it idle, rev and pull to the limiter, live on your iPhone or iPad. BUILD BENCH • Start from 317 real engines with their published bore, stroke, compression and firing order, or design your own. • Set the layout, 1 to 12 cylinders, bore, stroke, firing order and redline. • Hear each change as you make it, and hold to rev. • Try different headers, exhausts and mufflers. • Compare against a saved version by ear or on the dyno. SEE IT IN 3D • Every engine, including your own builds, becomes a 3D model driven by the live simulation: pistons, crank, cams, valves and glowing headers. • Orbit, zoom, slow it down, switch between X-ray and solid, and tap any part for live readings. The classic 2D cutaway is one tap away. DRIVE IT • Manual or automatic gearbox with clutch and road speed, plus a gearing chart with top speed in each gear. • Simulated dyno pulls with torque and power curves. • Six built-in engines: Honda B18C5 VTEC, Honda TRX520 single, BMW M52B28, Toyota 2JZ, Audi 2.3 inline-5 and GM LS V8. IMPORT AND SHARE • Import engine-sim .mr scripts and share your builds as .mr files. • Export a WAV recorded by the on-device simulator. No account, network service or microphone permission is required. An optional one-time Pro purchase opens every catalog engine, the Specialists and Masters challenges, advanced tuning and unlimited saved builds; the free plan includes 20 catalog engines and keeps three builds. Values are simulated estimates for exploration, not certified engineering measurements.

Steam Engine Simulator is a teaching game about how a steam engine actually works. You build one part by part — boiler, cylinder, flywheel, slide valve, governor — and then you drive it. BUILD IT, THEN RUN IT A 20-level campaign begins with nothing but a fire and a pressure gauge and ends with compound expansion. Every level adds one real component and one real idea, in the order an engineer would meet them. NOTHING IS SCRIPTED The flywheel carries real rotational inertia. The crank-slider is a solved constraint system. The engine genuinely stalls on dead center when the ports close, so you bar it over by hand and learn to time the steam yourself. No cutscenes, no fake gauges — the machine does what the machine does. SEE INSIDE THE MACHINE A cutaway panel shows the slide valve and piston moving in step with the running engine, driven by the same numbers that produce the forces you feel on the flywheel. A HISTORY OF STEAM The back third of the campaign is the story of the real machines: Hero's aeolipile from 50 AD, Newcomen's atmospheric engine, Watt's separate condenser and flyball governor, and Stephenson's Rocket. BUILT FOR MUSEUM USE Every goal is something you make happen rather than a timer to beat or a control to hold steady, so a first-time visitor of any age can finish any level and walk away having built something. MADE FOR TOUCH Playable entirely by touch, with finger-sized controls along the workshop floor and genuine multi-touch, so you can stoke the fire and work the regulator at the same time.