[1] In addition to the development of Raptor: Call of the Shadows, Cygnus also collaborated with Apogee Software on a number of their games.
[7] Paul Radek, who worked on the audio for Raptor, provided id the DMX sound library for their game Doom.
Raptor: Call of the Shadows was Welch's favorite game on the PC and he proposed to Host to port it on the iPhone platform.
Using the original source code, lead programmer Ben Moreno programmed the game on a Macintosh computer.
[13] After renaming themselves "Mountain King Studios", the company tried to develop a 3D RPG titled Mantra, but this was also cancelled in favor of the Demonstar game.