I believe it's 4 highlands.. I know I have t5, and most I've ever explored was 6 highlands. But yeah check wulfs build guide.
If you mean tier 5 buildings for Highlands, you unlock them once you first stumble upon the Highlands.
Thanks. I can't figure out how to link it from iOS. I know from home it's Forums -> Forums -> Strategy -> buildings and land
I knew where it was, just couldn't figure out how to link it for the person that needed help. So in case the link is lost, he knows where it is.
Will there be any further development of this game? There is no information yet about anything new coming up. Stopped ata the development of kaw? Game starts to be boring!