My first procedural generation experiment that I made back in March - super simple AI generates an overhead view of a random terrain composed of grass, water, and rock blocks. The end result should be a randomly generated marsh-like area with rivers running through grassland, set against the base of a rocky cliffside or mountain. As in most of my recent projects, the only sprite in use (except for a loading splash screen, I think) is a Printer or Artist sprite, which in this case starts at the top left and works right and then down, and the type of each block it prints is randomly decided with input from what the blocks above and to the left of it are. I didn't know about The Game of Life at the time when I made this, but that's basically the principle utilized here, and in several of my other ProGen projects Press the space bar to generate a new terrain,& you can press 'c' to pull up a slider which adjusts the Contrast variable.
Basically all of the projects in this studio were inspired by the r/proceduralgeneration subreddit. Those guys are awesome