Thank you for your deep review ! Yes there is a background music but on some browser it may not play I didn't know I only tested the webbuild on chrome ( and some already told me about some issues on Firefox ).
I think that I will overhaul the entire premise of the tutorial to better showcase the tower stacking mechanics and yes the shop is the thing in the lower part of the screen !
I plan to release a color blind mode or at least some symbols to better showcase the differents types of tower !
The non rotation of the block is what makes it more challenging ;) ( Not that I didn't have the time to implement it, no no no... XD)
Yes each tile is a tower so a 4 block tile put 4 towers at once ! The damage ramp up comes from actually stacking them not how easy there are to put !
Hope you still managed to have a great time ! Thank you for taking the time to play the game and put a long review !