Good find! Definitely looks like they integrated the previous developer into their main team.

Yeah I was impressed by how polished it seemed. Looks like it is by a different developer than the "Dig" games - https://store.steampowered.com/search/?developer=Thunderful Development

Still impressive that they've never made a City Builder before though!

The end of Demo said it'll be released this year (2023).

Yeah I really think they did a good job with having a lot of systems, yet still being pretty straightforward to understand. There were only a couple things that I didn't immediately understand (even without reading tutorial text).

Definitely can't wait to see if the full game holds to that pattern!