Brick Block (2016)
Please note that this is an old demo that has since grown into a full-blown game: <a href="https://steamcommunity.com/app/1291340" rel="nofollow">https://steamcommunity.com/app/1291340</a> (Says Windows-only, but has a working Beta for Mac)<p>Here's a talk by Oskar on how generating such worlds work: <a href="https://www.youtube.com/watch?v=0bcZb-SsnrA" rel="nofollow">https://www.youtube.com/watch?v=0bcZb-SsnrA</a>