The architecture must match your device's CPU.
WordBrain-2-word-puzzle-game_1.9.60_apkcube.apk.WordBrain-2-word-puzzle-game_1.9.60_apkcube.apk into the emulator window.Before you install: Android will ask you to allow installs from unknown sources, Play Protect may show a warning even on clean files, and sideloaded apps won't update automatically. XAPK and APKS bundles also need a dedicated installer app. Sideloading guide →