Lub KvK (Kingdom vs Kingdom) yog ib qho ntawm cov xwm txheej zoo siab tshaj plaws hauv qhov kev ua si Rise of Kingdoms, tab sis ntev npaum li cas nws nyob hauv version? Tshawb xyuas lub sijhawm ntawm qhov kev tshwm sim no thiab tag nrho cov ntaub ntawv ntsig txog ntawm no.