here's my game: https://fahps.itch.io/one-color-dungeons
I wasn't originally planning on joining the jam, but when I saw the theme announcement, I started having ideas and found something really simple that I could do without too much huzzle. After about 8 hours, I had something I was happy with and let a friend playtest it. I realized that I wasn't finished AT ALL as he didn't understand it. It turned out simple is sometimes the hardest to do! so I spent another day just conveying the concept more clearly. I'm pretty proud now though :)