Hello fellow veterans, today I will share with you how to unlock the stone technology of the two monarchs of the kingdom. I hope it will be helpful to you. If it can help you, please pay attention to this site and bookmark it. Your support is our biggest motivation. Thank you everyone. Let’s get started!
Stone technology must be unlocked after the game progresses to the second island . Through exploration, you can obtain the architectural drawings to unlock stone technology, which can only be unlocked by spending 10 gold coins .
It's like the big rock in the picture below. This refresh point is random. It's on the second island anyway. You can just go find it yourself.
After upgrading stone technology, you can upgrade camp buildings. Wood buildings can be upgraded to stone materials.
There is no need to unlock it again when you go to a new island. You can directly use stone technology to build a camp, which is much more convenient.
