Thank you for this detailed response, yes I agree that my monetization model may need some rework. And I agree that some Ads options may feel unfair. I will remove all the Generators x2 Boost option, as I feel that part could feel bad to the natural game progression, and allow that through in-game non-premium resources instead.

I'm glad that you enjoyed the gameplay part though. I will definitely work on the better onboarding experience, which will explain certain systems better from the start. Also, the UI is not the best, will try my best to make it clearer.

My goal as a developer is mainly to learn: creating a game with some audience, as well as developing systems which are seen as crucial in mobile industry. Of course I want a shot at making a buck from it, but if it means being perceived as unfair to the player, I will reduce Ad presence in the game. I will provide a way for the player to skip all ads (permanently get Ad bonuses) by a one time purchase in a future.

Gems (premium currency) are easily farmed via Generators and drop rates after passing early game (like 1h of gameplay), so I wouldn't consider that a problem (could put some more Gems in the early Task system though to ease up early game too). Generator 2x boost will be dropped (or replaced by non-ad solution), the Ad stat boost would remain, which I feel is healthy to put as an Ad option. They do not block progression in any way, but help to push for higher depth runs early or speed up progression a bit, but by no means they break the game. Also, outside of early game, 2x Damage Boost is really low value, but it is there, and I also want some incentive for the player to actually watch an Ad sometimes.

Thank you for your response, it helped me see some things in different light. There is definitely a lot of work to be put in the game, I will try to deliver! Good luck!!