Build it. Hear it. Drive it.

From a 0.9 hp veteran of 1896 to an 11,000 hp monster, the catalogue spans city cars, supercars, muscle, pickups, vans, trucks, tractors, karts, single-seaters, scooters and superbikes. Each vehicle carries a spec sheet of about forty fields — year, engine architecture, power and torque curves, weight, gearbox, brakes, tyres, drag, fuel system — and that sheet is what the 3D view, the driving model and the sound synthesis all read.

And when the catalogue runs out, the infinite generator takes over: short codes decode into procedurally derived vehicles across era, category, energy, family and rarity, with their own favourites list.

There is no recording to play back. Every sound in RPM Engine Simulator is built live from oscillators, gain stages and filters, following the engine's RPM and load: pistons and crankshaft, valves, intake and exhaust, the whistle of a turbo or compressor, the starter cranking, the rev limiter cutting in, brakes and wind.

Two styles — CLASSIQUE and REALISTE — change the character of the synthesis, and a light-sound mode keeps weaker devices running smoothly. Prefer silence? The game plays fully with the sound off; you only lose the audible cues.

The engine view is built procedurally from the fiche: real-scale geometry, pistons, crankshaft and connecting rods animated by RPM, covering every architecture in the catalogue — inline, V, W, boxer, Wankel rotary, hybrid, electric, turbojet and steam turbine. Open the bonnet and the engine sits in the compartment, exhaust line derived from its topology.

The main screen keeps a live, auto-rotating 3D preview of your current vehicle, and the road renderer draws the same procedural road in 2D or 3D. Four quality levels, plus an automatic mode, keep it smooth on any device.

The road is generated from curvature, altitude and slope — no two stretches are a fixed track. Drive with pedals and clutch, four steering modes, gyroscope tilt or a gamepad, with cruise control, an H-pattern shifter, mirrors and camera views including an interior view.

The world pushes back: rain, snow and fog, night driving with headlights, traffic density, police, damage, breakdowns, fuel consumption and oil wear. Race, duel an opponent you choose from the dealership, and let the chronometer settle the 0–100, 0–400 and 0–1000.

The garage, the engines and the dealership live in one panel with three tabs. Search narrows the list as you type, filters and the cars/motorcycles toggle keep the collection readable, and favourites are stored as vehicle codes — so a corrected spec sheet flows through to the vehicle you saved.

In the dealership, every card shows its state and its price: current, duel opponent, or already owned. Take a vehicle, test-drive it first, or browse the used market — a fresh set of listings every week.

The workshop covers the whole vehicle, one system per panel: engine type and layout, cylinders, valvetrain, carburation, turbo, exhaust, gearbox and differential, brakes, suspension, tyres, weight, drag, aero, hybrid and electric systems, even the boiler on a steam vehicle. Every row shows its current value; every change saves to your device.

Setup handles what changes between outings — ABS, adaptive cruise, gearbox and wings. And when tuning is not enough, build: create a vehicle, create an engine, assemble from parts, or swap an engine into another vehicle and drive it with the new engine's power, redline and sound.

Career mode is a separate game with its own garage, engines and wallet. Pick Track or Midnight, start with 10,000 credits, and build your collection through the career dealership, garage, workshop and setup doors.

There is exactly one way to earn: sell a vehicle, and take 60% of its price. No race winnings, no handouts — every purchase is a decision. The championship door is marked coming soon; everything else in career is open from the first day.