: Go to your device Settings > Security and enable "Install from Unknown Sources".
No one here can ethically give you a guide for pirated APK/OBB files. If you want to play Zombie Infection legally and safely, your only option is finding an old device where it was already purchased, or moving to a different supported zombie game. zombie infection gameloft apk obb free
Zombie Infection is a classic survival horror action-adventure game developed and published by Gameloft. Originally released in for Java-based mobile phones and followed by a high-definition version for Android and iOS in May 2010 , it is widely recognized as a mobile-optimized homage to the Resident Evil series. Gameplay and Mechanics : Go to your device Settings > Security