Here's my remix for the Tower Defense Remix contest! I changed quite a lot visually, but a lot of the core underneath especially the map and path-building logic is either preserved or reworked based on what I saw in the original code.
Balancing this game solo it's tough. The main idea is that the game is supposed to be hard you're meant to lose at first and grind skill points to progress through the talent tree.
So please share your feedback with that in mind it's designed to be challenging!