Combining an idle clicker with a TD is a brilliant design choice, can't believe I haven't seen that before. Spamming click to generate income works so well with the natural down time of a TD where you are waiting for waves to finish. I really love the concept and had a fun time beating your game. The layout of the map is solid and the background decorations bring everything together well. Game feels well optimized and my not-so-great laptop ran it smoothly, even in the end game with lots of bullets, towers, and enemies. Kudos for that. Background music and sfx would help the overall atmosphere a ton. More visual feedback for the player would help a lot too, as it is tough to decipher what is going on (e.g. tool tips on hover for tower abilities/cost, text pop-up on screen every time you click to show how much joy you generated, etc). I think the headquarters building increased the range/damage/fire rate of my bullet towers, but there was no real way to know. That being said, I think you have a very fun proof of concept with some real potential if you decide to pursue it further. Great entry, keep it up!!