Hi yall, this is a very interesting concept! It reminds me a bit of PvZ in the best ways, and I'm excited to see how it turns out. I think you could probably try to narrow the target audience a bit if that would be helpful to think about. It seems like yall understand the challenges that you will be facing well, and as others said I'd be a bit worried about scoping. Trying to get a solid grasp on what kinds of puzzles and how they will be implemented early on will be key, but the mechanics seem very fleshed out already which is good. Wishing the best!