This is my first time actually trying a game like this and it was so fun to play! I did only find two flags but it was very enjoyable :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)