The warplane in Raptor is based on the McDonnell Douglas F-15 Eagle, though the F-15 Eagle is not able to take off or land vertically, like it is shown in the Raptor cutscenes.
Raptor contains several hidden Easter eggs, for example the Apogee theme being sung by the developers. These Easter eggs occur when the game is started on the developers' birthdays (or if the PC's internal clock is manually set to one of those dates).
The original MS-DOS version runs at an unusual frame rate of 24 fps. This is because Scott Host aimed for a 16 MHz 386 computer as a minimum requirement - and that computer couldn't run the game at full 30 fps. He decided to lock the frame rate at 24 fps instead, because that is the standard frame rate of cinema movies.
Raptor has some loose technical connections to Doom (1993) by id Software. It uses the same sound engine, and an early version of Doom's setup program seems to be derived from Raptor's setup application - its copyright text says "(C) 1993 Cygnus Studios & id Software".
The working title of the game was "Mercenary 2029". Someday after work, the creator Scott Host and his friends from id Software (known for games like Doom (1993) and Quake (1996) ) went to the cinema to watch Jurassic Park (1993). On the way back home and inspired by that movie, Scott Host suddenly had the idea of giving his game its final name "Raptor".