played it on zx spectrum, a LOT great game. computer hide and seek. always on the move, trying to stay ahead of the sentinel or it's sentries.
what amused me at the time was that there are 10,000 levels loaded in from tape and within a few weeks of it being released magazines had accumulated codes for all of them from readers playing at home iirc. pre internet that was a lot of information gathering.
That’s a fun reward!