Very nice game, runs like a charm on my Book8088. I created a cheat sheet for it, your feedback/corrections are welcome.
https://cheatography.com/tme520/cheat-sheets/barren-planet-for-msdos-keyboard-ma...
Ah! Reliability 100
I shortly considered creating a cheat sheet for Barren Planet, but came to the conclusion it would be useless. The game loop is intuitive and you managed to craft a game that is a pleasure to play using the keyboard. The CGA graphics are also nice and readable.
Barren Planet reminds me of both Military Madness (Nectaris) for PCE and Dune 2.
I fixed my incredibly silly mistake and renamed the cheat sheet: https://cheatography.com/tme520/cheat-sheets/ossuary-for-msdos-keyboard-mapping/
I play the two games on my Book8088, they are exactly what I was looking for to enjoy that odd piece of hardware.