Hey, thank you for the feedback! What depth/ascension were you at for this?
I just nerfed these two adaptations. Do you still think they are OP?
It's like this: i pick shield ASAP and then go for at least 1 hp regen. Then I can invest evenly into all upgrades and get as deep as I want without dying. Even 1st wave of enemies doesn't kill me.
May I suggest moving these upgrades into prestige? Or maybe rising their prices or make unlockable via prestige?
After all it's your game, and it's up to you to decide. I can only point onto something I think is a flaw.
P. S. Shield can be a temporary powerup. Turn it on when you think you need it and then wait till cooldown. It will bring more "active" gameplay and make it less OP I think. Shortening cooldown / increasing duration will fit into prestige upgrades nicely, while shield itself can be general upgrade.