I didn't make it to the boss in your screenshots, but it's due to my poor survival skills I'm sure! The hitbox of the blade against the enemies was a bit inconsistent, and I wish there was just one more enemy type. I think even if they dropped the same types of items, it would spice things up quite a bit. I was missing some little grass sprites too, to really sell the fact that I'm out in the wilderness. The base building and upgrading stats is really cool, well done! That adds a lot of different strategies to consider and certainly replay value. This could turn into something great if you have the time to put into it! Good job!