Likely the first computer game to get randomised was Pac-Man. The original Pac-Man boards were deterministic enough that it was possible to memorise and follow

Likely the first computer game to get randomised was Pac-Man. The original Pac-Man boards were deterministic enough that it was possible to memorise and follow a pre-planned route through the game https://archive.org/details/How_To_Beat_The_Video_Games/page/n39 https://archive.org/details/How_To_Beat_The_Video_Games/page... . Apparently this was addressed by an official Pac-Man Update Kit.