Hi, for feedback, it wouldn't be about the game itself, but more about how you present the project page. If you want more people to play the game, you should really do more with your game page and the game title. It doesn't have to be anything fancy. Take a few screenshots of your game and post them on your project page. Choose one of them as a cover image. Also, on your actual project page, write atleast one short paragraph about your game's story and mechanics. Your game Royal Feats was a decent entry to one of the previous game jams, but the project page was empty like this one and I think it that made less people play it, which is a shame.

You can look at the project pages of the other game jam submissions for some inspiration on how to design the project page. Simply adding a few screenshot, a cover image will work wonders. Hope my advice will prove useful :)