I agree. It's very simple, and could use some curveballs. Right now it's just a fun concept / foundation, but it needs more mechanics to keep things interesting.
If I'd had more time, I would've liked to add police who use your knocks, but with certain parts offset a little. An imposter knock. Giving them a product will ding you. Maybe even some resource management elements. All theoretical. I didn't get around to prototyping any of that.
Thanks for playing!