This is the Mac 68K version - all older versions stay the same.
The TimePilot68K.bin is what I FTP to my Centris 650 (The client strips the .bin and then it is the Game ready to run) and the Time.Pilot68K.dsk is the disk image Retro68 made.
The gs versions have _gs in them (1 & 2 are floppy images but the game needs to be played from an HD - it loads the audio on disk 2; V1.6.po is a GSOS bootabe image where Time Pilot auto-starts)
The Windows and CX16 versions are easy to spot :)