Reminder extra nerds

1frankgrimes wrote:
Do max nerds keep increasing after castle level 21?
I thought it was just walls for sale every time. I have 130 max now, and not buying the walls because I don't need them, but I would if max nerds continue to increase..

My Bart's paper castle is on level 30, and it gives me a wall only on every level upgrade. So I think 130 is the maximum nerd maximum (pun intended).