APK MOD INFO
Name of Game: Catastrophic Zombies
VERSION: 1.0.21

Name of Cheat/Mod/Hack (credits: wendgames):
-UNLIMITED MONEY

Catastrophic Zombies MOD APK 1.0.21 (Mod Money/Items)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb