Place towers from the shop (button to the right) to kill enemies wave by wave. This is a basically remastered harder version of the original game. I also can't code a TD game, so I just remixed this and changed like everything to my style and what I want.
Credits to @warframe Credits to Phoqus for the music New enemies: Bloater, Dasher, Giant New towers: Piercer Changes/Additions: changed many visuals, added obstacles, made waves harder, made random health, increased tower prices, made it so you will get more and more cash each wave, added more waves, changed enemies speeds and health, added new enemies, added a new map, enemies who make it to the end have a chance of doing 1 - 3 damage that was previously 1, added Commander, removed infinite waves because of its difficulty with bosses, added victory, added tower cap, added music.