In no order as I don’t have definitive favourites and I have bad memory.
1: Black Lagoon
2: Neon genesis evangelion
3: Ghost in the Shell : Stand along complex
4: Overlord
5: The Ancient Magus Bride
6: Attack on Titan
joy of creation, glitched attraction, One Night at Flumpy’s 3, The Dayshift at Freddies games, jolly, a shadow over freddy's, fun times at homer's, dormitabis remastered, fnati 2017 (all versions) and fnati 2020, too many to name
I like the endings of these stories a lot, so I only search for ones with 'completed' tag, so this might not be my thing, but looking at the size of it, it has a fair amount of content
but even if an AI does make a functional game, it might still need to be polished to make it playable, and in the your example of a million monkeys with typewriters, all the results would need to tested as well