Having a restart option without going all the way back to the main menu would make this game 100% more enjoyable.
Also, I abhor games that are keyboard based but require you to pick up your mouse to advance or restart a level. Try the common (R) for restart, and (Space) to advance to the next level.
Thank you for playing and thank you for your feedback! I don't understand why you would want to restart a level when it comes to a game like this? What's the purpose?
Message to the game Dev:
I'm at a point where the majority of my reactor is made up of Ultimate Capacitors. Maybe introduce a battery, Transformer, something to store more energy or better upgrade structure so I can sell more energy.
Thank you for playing and thank you for your feedback! I don't understand why you would want to restart a level when it comes to a game like this? What's the purpose?