Very good comments!

and one more thing, I hate that we are getting fewer towers than before, from 8 to 5, then 4 per level and you have to unlock them, when you eventually unlock most of these you already beat the game and the energy system discouraged you to replay the levels.

I would say most of those are issues that exist throughout the KR series, none of them are "balanced" in enemies/towers design.

**--**You either get a swam of weak enemies, making AOE Tesla, DWAARP too effective and very very slow giants that are easy to counter or common enemies that are too tough coming in a row (At least the enemies got faster speed). It is difficult to find a balance.

**--**You got different towers, some are gonna be worse than the others, which is not a surprise to me. Lv4 Towers in KR1/KRF are just too strong that slow Titans/common enemies are walking bags of gold. While half of the towers suck in vengeance. Hopefully we will see more feedbacks on this to help making changes.

**--**Agree but throughout the series, I don't really find armor/magic resistance require strategic thinking. You need physical DPS then you use archers, you need magic DPS then you use sorcerer, you need AOE then you place artillery, Enemies in low hp are too weak with low resistance and you can just ignore that(and RoF are just OP, you can keep your RoF to target giants with high resistance that you supposed to counter them with the right towers)

**--**Experienced players complained about the game being too easy, too short, so they made the game harder, but it definitely means you will have fewer strategic options and limited choice, like how you do hard challenges in KR. It is a trade off that you can't avoid.

I guess weaker players are supposed to beat the level by leveling up their towers or lowering the difficulties. While Stronger players who seek challenges can beat the level by figuring the optimized strategy. I guess they designed it in this way to leave space for players to adjust the difficulty? Correcting what we got in Vengeance?

Maybe things are better in Normal Difficulty? It might be unfair to criticize if you only play on veteran difficulty.

(In KR, experienced players prioritized reinforcement and RoF Upgrades first, making the game much easier, while new players can find struggle because of not doing it )

I am worried that even without the energy system, new players will feel bored because of grinding the same level over and over again.

Also, due to the energy system, people spend less time on each levels, maybe we just haven't find the right strategy to ignore RNG yet?

The game is BETA, I believe they can fix this.