Free rocket simulator

Spaceflight Simulator online rocket launch and orbit lab

Spaceflight Simulator lets you assemble modular rockets, test Delta-v, launch with throttle and pitch controls, and see whether your design can reach orbit, transfer to the Moon, or attempt a Mars trajectory.

Built for space game players, students, physics fans, and anyone learning orbit basics in the browser.

Spaceflight Simulator interactive rocket tool

Start Spaceflight Simulator here. Pick rocket parts, choose a mission target, watch live mass and Delta-v estimates, then launch and guide the flight on the 2D canvas.

Spaceflight Simulator rocket editor

Set command, fuel, engine, separator, parachute, fairing, solar panel, and payload counts. The simulator recalculates mass, cost, drag, fuel, thrust, burn time, and Delta-v.

2D builder

Share Spaceflight Simulator results

Share the clean page or copy a result link with the current rocket parts and mission target.

Total mass

-- t

TWR

--

Delta-v

-- m/s

Estimated max height

-- km

Orbit capability

--

Transfer readiness

--

Live 2D flight

Spaceflight Simulator orbit canvas

Editor

Launch controls

Altitude

0 km

Speed

0 m/s

Fuel

0%

Acceleration

0 m/s²

Periapsis

-- km

Apoapsis

-- km

Orbit shape

Launch path

Mission progress

0%

Mission report

Spaceflight Simulator results

Launch a rocket to generate mission scoring, efficiency, orbit stability, landing speed, and improvement advice.

Score

--

Fuel efficiency

--

Remaining Delta-v

--

Landing speed

--

Improvement suggestions

    Spaceflight Simulator uses a simplified educational model based on rocket equation and two-body orbit ideas; it is not an official game clone or a professional mission design system.

    Spaceflight Simulator rocket design and orbit overview

    Spaceflight Simulator connects the build screen to mission outcomes so rocket choices are visible in every flight metric.

    Spaceflight Simulator modular rocket workflow

    Use Spaceflight Simulator to combine command capsules, tanks, engines, separators, parachutes, fairings, solar panels, and payloads into a launch-ready stack.

    Spaceflight Simulator overview with modular rocket parts, orbit display, and flight metrics

    Spaceflight Simulator mission outcome comparison

    After launch, Spaceflight Simulator compares suborbital arcs, elliptical orbits, circularization, transfer trajectories, crashes, and landing attempts.

    Spaceflight Simulator comparison showing suborbital, orbit, and transfer mission paths

    Spaceflight Simulator quick guide

    Use this Spaceflight Simulator guide to build a first orbit-capable rocket and understand the launch controls.

    01

    Spaceflight Simulator choose a mission

    Pick suborbital, orbit, satellite deployment, Moon, Mars, or return flight so Spaceflight Simulator can score the right objective.

    • Start with stable low orbit
    • Use the orbit build preset for a baseline
    Open simulator
    02

    Spaceflight Simulator tune Delta-v and TWR

    Add tanks for Delta-v and engines for thrust-to-weight, then watch whether Spaceflight Simulator marks the design as orbit or transfer ready.

    • Low TWR struggles to lift off
    • Extra payload quickly reduces Delta-v
    See features
    03

    Spaceflight Simulator fly the gravity turn

    Launch vertical, then lower pitch gradually to build horizontal speed before circularization in Spaceflight Simulator.

    • Turning too early wastes energy
    • Orbit needs horizontal speed, not only altitude
    Browse tools

    Spaceflight Simulator features

    Spaceflight Simulator keeps rocket building, orbital estimates, flight control, and mission feedback on one fast browser page.

    Spaceflight Simulator part parameters

    Each part affects mass, fuel, thrust, drag, cost, burn time, and Delta-v so the rocket editor feels like a real design trade-off.

    Open simulator

    Spaceflight Simulator live telemetry

    Watch altitude, speed, fuel, acceleration, periapsis, apoapsis, orbit shape, and mission progress update during flight.

    Try launch

    Spaceflight Simulator mission advice

    Get scoring, fuel efficiency, remaining Delta-v, orbit stability, landing speed, and suggestions after the simulation ends.

    Read guide

    Spaceflight Simulator use cases

    Spaceflight Simulator is useful for quick lessons, game-inspired planning, and intuition around rocket launch and orbit mechanics.

    Spaceflight Simulator for players

    Practice the design logic behind rocket games without copying a specific game interface or asset.

    Open simulator

    Spaceflight Simulator for students

    Connect Delta-v, thrust-to-weight, gravity turn timing, and orbit shape with visible telemetry.

    Start lesson

    Spaceflight Simulator for physics fans

    Explore simplified rocket equation and two-body orbit ideas through fast browser experiments.

    Experiment

    Spaceflight Simulator for mission ideas

    Compare orbit, satellite, Moon, Mars, and return mission goals before adjusting the vehicle.

    Compare goals

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    Spaceflight Simulator FAQ

    Answers about Spaceflight Simulator, rocket design, Delta-v, orbit readiness, and sharing.

    Is Spaceflight Simulator an official game page?

    No. This Spaceflight Simulator is an original browser tool for learning rocket and orbit concepts. It does not copy another game, logo, asset set, or interface.

    What does Spaceflight Simulator calculate?

    Spaceflight Simulator estimates total mass, thrust-to-weight ratio, Delta-v, maximum height, orbit capability, transfer readiness, live flight telemetry, mission score, fuel efficiency, remaining Delta-v, orbit stability, and landing speed.

    Can Spaceflight Simulator teach real orbital mechanics?

    Spaceflight Simulator is simplified, but it uses useful ideas such as Delta-v, thrust-to-weight, gravity turn timing, periapsis, apoapsis, circular orbit, and transfer trajectory readiness.

    Does Spaceflight Simulator change the page URL while I experiment?

    No. The clean Spaceflight Simulator URL stays unchanged while you edit and fly. A parameterized setup link is created only when you press the copy result link button.

    Start Spaceflight Simulator now

    Open Spaceflight Simulator, assemble a rocket, choose a mission, launch, stage, pitch over, and see whether the vehicle can reach orbit or a transfer path.

    Free, browser-based, and no download required.