Pricing

Every real engine is free. Building your own is Pro.

Run all 45 engines, the dyno and the spec editor for nothing. Pro unlocks the builder.

Save 58%
Free

$0

No account needed to run anything.

  • Every real engine in the roster
  • The full spec editor, dyno and P–V trace
  • Share links
Engine Sim Pro
Pro

$5 / month

Billed $60 a year

  • Build unlimited engines
  • Save built engines to your garage
  • Premium support
  • Priority feature requests
  • 14-day money-back guarantee
  • Secure payment via Polar
  • Cancel anytime

Trusted worldwide

Hundreds of engineers, students and schools across the globe run their engines here.

  • EngineersSanity-checking a spec before any metal is cut.
  • StudentsSeeing the four-stroke cycle instead of reading about it.
  • SchoolsRuns in the browser on any lab PC. Nothing to install.

Questions