The Amiga version runs under emulation with WinUAE as long as you set CPU Emulation Speed to ‘Fastest Possible’.
1. Download WinUAE and setup a system with specifications of an A600 or A1200 or better (set fastest possible on CPU speed)
2. Mount an Amiga ADF (disk) file containing Indy 500 and reboot to launch from it
3. Setups and replays will be saved in slots on the disk.
Mouse control was the smoothest input method available on Amiga.