Since there are a great many 16-bit-era types around, maybe you can help me remember a piece of Atari ST software which was sort of a game, sort of a simulation toy; think RoboCode, if you know that, but with more too it and less Java.
It was a little bit Conway's Game of Life: you had little robotic life forms, and you could plop them down in a maze of your design, which could have food in it, and the robots could be assigned to coloured teams. The robots themselves were built from simple logic gates, up to the complexity of flip-flops for simple memory, and the usual array of sensors and movement widgets: I think they could fire bullets at opposing teams too. Their appearance was based on a scaled-down version of their circuit board.
This thing has been rattling around in my brain for ages, and even if I could get anywhere near the old ST in storage, the chance of finding the right disk is tiny. It would be awesome to dust off the concept and give it a new lick of paint.