RAICER

FPV drone simulator

RAICER is a PC FPV drone racing and freestyle simulator. You fly quadcopters through maps, race for lap times, practice precision courses, or fly freely. Its physics calculate thrust and handling from each drone’s propellers, motor KV, battery voltage, weight, and frame.

The flight controller is modeled on Betaflight 4.5, with adjustable PIDs, filters, and throttle limits. You can set rates using Betaflight, Actual, KISS, Quick, or Raceflight settings, or import them from a Betaflight “diff all” file. Camera angle, field of view, and fisheye effect are adjustable. Video can be clean, digital, or analog; analog breakup is computed from the radio signal, including when it passes behind walls.