I suggest you post your question on a Minix forum.
For example, I found this thread:
http://www.minixforum.com/threads/problem-gaming-very-delayed-reaction-image-of-the-game.129/"Good day. I Minix Neo-X8 H original firmware. I tried to play two games, Machinarium and Modern Combat 5. Minix reacts very slowly, especially in Modern Combat..."
So Machinarium WAS working on that person's Minix (albeit slowly?) Perhaps you can register there, PM that user, and sort out what is causing your install to crash? (there was mention of firmware updates in that thread, maybe that's your problem?)
In any case, good luck to you and please post a follow up when you find a solution.
Thanks,
~Alex