Modern mobile games store currency data on their own servers. Even if a mod menu visually changes your gold count to "99,999," the game may crash or give an "out of sync" error when you try to actually spend it because the server knows your true balance.
If you install a mod over your official game, you risk corrupting your save data, potentially losing months of legitimate progress. Better Alternatives to the Grind battle+of+warships+mod+menu+17212+gold+dol+work
A "mod menu" is a modified version of the original game APK (for Android) that injects a floating UI over the gameplay. In version 1.72.12, these menus typically claim to offer: Modern mobile games store currency data on their own servers