If your looking for Dungeon Loot Redeem Codes the best place to find them is one their Facebook page. The seem to release codes that work for different games though some of them seem to long for this app. You might not be able to use some of the codes since they have expired, but some of them might still work.
The game comes with a code already called “newbie”. When entered and after you click redeem you get 500 gold. It’s not much, but it will help in upgrading your character a little bit. At the most you probably won’t be getting that much when it comes to code rewards.
Developers can also put codes on the game that will earn you lots of currency that can ruin the game. This would be more for game testers or maybe people close to the developer. They might not have something like this in the app, but they could too. It might be shown somewhere in the game code if you have knowledge of how to do things like that.
You might want to check the devs Facebook often so you don’t miss out on anything. You might have to search through the many post to find what you need.