Loved the concept! It makes sense that the larger the canvas, the harder it becomes to defend. Be careful with balancing; never reduce cooldowns by a fixed amount (e.g., -0.1 sec) because it can exponentially increase the power. Great game!
Thank you very much!!! I was actually wondering how to balance some of the upgrades and this would have been great to know. Definetly keeping it in mind for the next time though!!