Yeap, I didn't have access to "normal game computers" like Yamaha MSX, Spectrum, Atari, etc but I had access to IBM PC/XT(well also to IBM System/360:). There were no toys in those days, so we(my friend and I) wrote a lot of clones of tetrises, snakes, arkanoids, space invaders using a text mode. The 8086 assembler was pretty easy and fun. Any program at this age it was like a new adventure. All this was much more interesting than any of the games.