Not bad, decent mechanics but they should try making their own graphics. I noticed they use Syntys.
It's a decent game but they can't really commit to what they want to do. It has good mechanics but it's poorly organized, poorly constructed and it's a linear progression of item to item.
The tech tree feature is nice however, It's quite broad and fleshed out and allows for multiple things.
A lot of the assets from this game they have just thrown in from the unity store it seems and not a lot of it makes sense. They should try cleaning up or adding some sort of reason for a medieval settlement to build an "ancient tree" which is a giant pink sakura tree.