I liked your idea where your character is a private investigator. Actually, I’ve been trying to develop something like that for a long time… There’s a game called Mimic Search that demonstrates the concept of “investigating a strange event” in a small game. It has an open-world map, and you need to talk with weird and interesting characters…
Of course, this episode should reveal another detail about aliens… but right now I’m working on a different episode (spoiler) about a guy who likes collecting honey in the forest…
Also, write me an email and I’ll send you a key for the game.