Wow, I had the same idea, and I made my game with 8 endings. But yours is so much better execution of what I had in my mind. Eventually, I thought controlling environment would be too difficult for my game, so I modified my original concept, but I really love your execution. This would definiately be a commercial game if you can add multiple different endings to it based on how player save the character.
I would really appreciate it if you could play and rate my game as well 🙏