This was the most detailed and educational feedback I have ever given! I appreciate your time you spent for my game. I really wanted to make people have fun and go around. I am so happy that you took your time to write a review like this! It worths the entire week I spent on this. And, let me answer some of the issue you've mentioned below.
-Combat: Enemies have 100 HP and player damage is 5. However, since it was a last minute mechanic, i couldn't add anything other than sound to state you have inflicted damage on them. Thanks for this, this provided me to have nice update ideas!
-Difficult: You are right about the difficulty. I didn't have enough testings to optimize the gameplay. The game will change the enemy health over time too. And in the future more enemy types and tower types are going to be there.
-Economy. MagiCores are quite expensive and it has drop chance of 12%. Until you build your second tower players have a lot of problem to fight off. MagiCore meant to be rare to acquire however upcoming updates will get you a "permenant" upgrade (even when you die you will have the perk) where you double your chances of acquiring them.
-House: This will have other updates too regarding to upgrade. However, its not priority for now but I will note your advices!
-UI: This part is my archenemy. I think UI is one of the hardest thing to pull of to have decent view of everything. Unfortunately, I couldn't make it on time to prepare a good one. I have some ideas but it always bothers me how things feel out of place.
-Upgrades: Woocutters have an upgrade option however the trigger regarind to that has some issues. I should have play tested properly but I updated the gamefiles like 2 mins before the deadline. I am sorry for the inconvenience.
My personal feelings were telling me that i don't deserve much. But your words were so kind and lovely. These moments make me want to create more games and creative worlds!