“NetHack is one of the oldest and arguably most impactful videogames in history, as well as being one of the hardest roguelikes currently being played by humans. It is procedurally generated, rich in entities and dynamics, and overall an extremely challenging environment…”
I’ve only played this casually, but it’s very complex. It might be a fun project to learn a little bit about artificial intelligence. Or, you might simply wish to play the game yourself.
Worth a look. It’s free and runs on pretty much any computer you’d want to use. Almost everyone will want to get a version with graphic tiles.