"The gold-colored rocks you found earlier might actually be valuable."- this is the correct spelling and grammar
"nearby" not nerby
Needs rescaling. It is significantly more difficult to finish the prestige tree than it is to finish the game - it should be the other way around.
Hm just saw the gold cost for the castle...maybe not so easy
also it is stone quArry not quErry. Castles not Castless. In this river ... not It this river.