I spent some time the last few days converting Petscii Robots over to the X16. It's now more or less fully functional. Well, you can play the game from beginning to end, anyway.. But it still lacks sound, and it is using the default font, which I hope to change soon to the PET font, which will make it look nicer. It also lacks a lot of effects like screen-shake, EMP flash, etc. I'll be working to add those in over the next few days. Also, since the game is designed for 40x25 screen, there is some black area at the bottom.
That being said, once I get this version completed, I'll slowly begin the transition to a custom graphic version for the X16 as originally promised, which should fill the whole screen.