Go to your Android Settings > Security and toggle on "Install from Unknown Sources" to allow the APK installation.
Originally developed by SNK and later adapted for mobile by Tencent, KOF 98 UM OL is a turn-based collectible card game (CCG) wrapped in the aesthetics of a 2D fighter. Unlike traditional fighting games where skill determines victory, here you assemble a team of iconic characters—Kyo Kusanagi, Iori Yagami, Terry Bogard, and Leona—and engage in strategic, auto-battling encounters. kof 98 um ol china apk