Pretty nice, though I'm a fan of rts. The AI could be improved. My soldiers didn't always engage with enemies, and instead choose to walk all the way to the enemy fort; all while the enemy was destroying my buildings. I also wish zoom with scroll wheel was inverted and I could cancel construction with esc. A tooltip for the building buttons be nice as well.
In your devlog I saw that you can upgrade the buildings. Yeah, I didn't realise that at all.