There is also another game/toy by Oskar Stålberg in which you can build a teeny, tiny block of house(s) on a 5x5 grid. Very cute, especially with all the well decorated balconies.
The house toy has a cute little easter egg: If you remove all the foundation pieces of the structure, the remaining structure above starts bobbing up and down slowly, hovering - very subtle way to acknowledge "yep, I did in fact think about that case too".
Huh. Adding one sea level block to the outside of that doughnut leads to all the propellers disappearing but no stilts. Resulting structure does not look very likely. :)
I highly recommend following indie devs on Twitter. It's always cool watching the game take shape over the years, and sometimes you also get behind-the-scenes details
Also wanted to pop in to recommend his Twitter. Watching these games get made has been a blast. Just the right mix of interesting math and creativity. I always dig into his blog posts and threads.
https://oskarstalberg.com/game/house/index.html
The author is on Twitter and sometimes tweets about development of his games and the techniques involved.
https://twitter.com/OskSta