: Once the folder is in the correct place, open the app. If you see a black screen or it asks for a download, the OBB is likely in the wrong sub-folder. Alternative Official Sources

: Run the .apk file first. If your device blocks it, you must allow "Install unknown apps" in your system settings for your browser or file manager.

While was historically a massive hit that redefined physics-based puzzles in 3D, acquiring it today often requires navigating specific installation steps due to its age and removal from certain digital storefronts. Installation via APK and OBB

: Unzip your file to find a folder usually named com.chillingo.catapultkingfree.android.row containing a .obb file.

: Use a file manager like the Samsung My Files or Google Files to move that entire folder to the following directory: Internal Storage > Android > obb .

If you have downloaded the game files as a ZIP containing an APK and an OBB (Opaque Binary Blob), follow these steps to install it on Android: