APK MOD INFO
Name of Game: Heroes: Defense Arena
VERSION: 2.4.1

Name of the cheat, mod, or hack (credits: wendgames):
-GODE MODE/BOOSTED SPEED ATTACK
-MASSIVE DAMAGE/3x SPEED UNLOCKED

Heroes: Defense Arena MOD APK 2.4.1 (God Mode/Boosted Attack Speed & More)

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