Q;How to research?
Click "research" button and enter the research interface. If there are sufficient resources, click the project that need to upgrade, you can upgrade;
But some senior product need to be developed first and then produce and upgrade, such as precious stones identify , Cavaliers weapons and siege weapons.
Q;Will research results disappear?
Research results will not disappear.
Q;How to adjust the picture and sound?
Click into the "system" interface, and then choose.