Congrats on putting this together!

• Music is a banger. seems it doesnt loop though so maybe just adding a fade out at the end and a fade in at the beginning could help!
• Castle sprite seems to be a bit blurred maybe due to it being a lower resolution.
• It seems I can click the "spawn archer" but nothing happened.
• I initially did not realize the red circle was the castle health as it looked like a button to me.
• Even if it does not shoot as fast, it would be cool if you could hold down mouse one to fire continuously.
• I love that enemies get knocked back a bit when hit, helps sell the impact. Maybe some hit flashes and sprite deformation would help it feel even more impactful. Maybe with some sound effects also.
• The fact you can wait as much as you want between waves means you can always wait for a full stamina. Not sure if that was intended but just thought id mention it.
• The energy consumable might make more sense if it matches the color of the energy bar (yellow) to tie them both together.
• Can the red coins only buy arrows? If so, could you just award arrows instead? Maybe you're planning to use this for other stuff also.
• I'm not quite sure what the clock power up does.
• It might be unnecessary to have both player health and castle health since castle only gets hit after you die. Again maybe you have other plans here I'm not seeing.
• Would be awesome to upgrade your stamina and such as you go along. 
• Maybe some ranged enemies to make your life difficult!
• Looking forward to see all the ideas you have for the game.

Amazing stuff. I really hope you keep going and show us more. <3 <3

hi 2NerdyNerds,

thank you very much for the feedback. I will try to answer them all :).

•   Music is a wip and will be put into a loop which seamless joins together.

•   Castle will be fixed in the next version.

• The Spawn Archer Button is there for when your Archer dies, so you can respawn him.

•  I will try to integrate the healthbar for the Tower better.

•  I will implement it in the next version. It's a nice feature to make the player look more for the energy-level.

•  Animations will be done for all. I try to implement as much as i can.

•  It's better to let the player choose the next wave, the waves will getting bigger and bigger. until 100 enemies comes in one wave. in the first wave it seems a huge bonus for the player, but it will be not so much in the late game.

•  The icons are not final. Right now i just choosed ones which were already in the sprite-sheet. I want to find better ones.

•  That's a bug, the coins should be golden. Later you can buy more with it.

•  The clock is a buff which sets the recharge rate for the energy higher for 5 seconds.

•  The castle has a health-bar so when the hero dies you know if you can still be successful with the round or switch the hero.

•  Later you can buy upgrades with the coins for energy/health.

•  There are some more enemies already in the game, but not available at this moment. There are range, tanks and some surprise enemies ;)

Thank you for the feedback. I will keep you updated.