Written in 100% 68K assembly language. Game storyline, coding & GUI/screen layout by Peter Ørbæk. Graphics, music & parser coding by Frits Nielsen.
 Game published worldwide by Free Spirit under license from Axxiom USA, Inc.
 Game supports PAL/NTSC screenmodes, in-game screen dumps to a printer, user definition of the function keys (F1-F10) to produce text commands at the press of a button, savegames, and a quit back to WB option.
 According to coder Peter Ørbæk, THE LAST INCA was coded with Frits Nielsen during their last year of high school.....but they were never paid any royalties due to publisher Free Spirit going bankrupt (which they did, but some 2 years after!).
In 2008, Peter Ørbæk recalled the events surrounding the game on his website and shared these memories with readers:
'Once I wrote an adventure game for the Amiga together with Frits Nielsen. We wrote this in the last year of high-school. It was called "The Last Inca". We both had an Amiga 500, and worked on it in our spare time. This was back in 1988. Twenty years ago, now!
Every other day we swapped floppy disks to share our work.
I wrote the basic framework (in assembly, aah the folly of youth :-)), as well as the story, whereas Frits made the parser (also in assembly, with plenty of macros), painted the graphics and composed the music.
Eventually we contacted a publisher (I forget their name) and they agreed to publish it. However, we foolishly did not opt for a one-time payment, but wanted royalty payments. Then the publisher went bust, and we never got a penny for our efforts. :-(
I actually didn't believe the game got out, although we did receive drafts for a cover for the game.
Now, today I read a news story over at TechReport on a new Amiga emulator, and thought I would try type in "amiga the last inca" into Google.
Lo and behold: One can actually find the game and download it, and there was even a review in a magazine! (a rather bad one actually :-)) Amazing!' [Source: coder Peter Ørbæk, via his old 2008 blog post; courtesy of the Internet Archive]
 THE LAST INCA was the only G-rated graphical text adventure released by Free Spirit for the Amiga, with their other adventures featuring the lewd sexploits of BRAD STALLION.