Every once in a while, the developers of TopWar: Battle Game do release gift codes that you can redeem to get free resources and other gimmicks.
The problem is that you need to follow several social pages and other sites to keep up with current gift codes, especially as they will expire after some time.
Below we have all the current gift codes at one place, so this is the only page you really need to check if you're looking for gift codes for TopWar: Battle Game.
In order to redeem gift codes in TopWar: Battle Game you need to go to settings:
There you will find a button called "gift code" and when you tap it you will see a window where you can enter a valid gift code.