Nice! Pretty interesting twist on a tower defence. Would love to see a very basic AI on the turrets & maybe extra abilities / shot strength when you control them. But 3 hours so still 5/5 for gameplay.
Edit: also its a bit hard to switch between cells without shooting them, maybe bind select to right click and increase cell hitbox for selecting? Decreased FOV on turrets is definitely interesting, but even the FOV on the producer cells does not give enough time to react when the game gets a little harder.