A impressive, interesting, elegant, and pretty tile laying puzzle game. The central play loop and core mechanics is fabulous and really enjoyable. The game is enticing and well balanced as well.

The Laboratory could really use some more work to make that aspect of the game more interesting. If the upgrades were hexagons or features that could appear on them - perhaps requiring particular arrangements of special features to unlock the more impressive bonuses, the "skill tree" could use the exact same mechanics as the game itself, and also have upgrades linked to in game achievements color-coded to match the terrain types they're associated with, which makes those upgrades more thematic as well.

More generally, I'd like to see the ability to unlock, upgrade, or discover different tiles, tile types, and unique tiles. I feel like there's a lot of potential to enrich the game through the laboratory that hasn't been explored yet. The upgrades could even result in subtle changes to the tiles themselves, like having people/automatons on tiles that are doing things. They could be static changes to the sprite or animated behaviors that wander around, interact, and do things in the world as it's built.

There could even be hostile tiles that represent rival towns or wizards or features that change things you've already placed!

On a much more basic level, I'd like to be able to rotate the tiles in the tray. Also, when the tiles placed starts getting over 150 or so, the game starts slowing down quite a bit.

All of this said, I think it speaks to how wonderful the core gameplay loop is here that I can see so many different ways it can be built upon and that I've been totally happy to play it as is in the meantime.