I had fun playing this game, it is fun trying to figure out how to write the assembly language small enough to fit in the microprocessors (there is a 14 instruction limit on the MC6000 and a 9 instruction limit on the MC4000). It can at times be frustrating to try and solve the problems, and the datasheets are sometimes not detailed enough (which is far too realistic). At least on the Linux, the game can take far too much of the processor. Unless I limit it with taskset it uses as much as it can of all the cores on my Intel i7-6500U cpu. (All to simulate and display some microprocessors that would be outclassed by a 1977 General Instrument PIC1650.)