Here’s a list of Slaying Simulator codes that have gone expired. If you spot any codes that do not work anymore, please let us know in the comments below, thanks. We’ll keep this list updated as long as the developers release new codes. Just hover your mouse over a specific code and click on it to have the code automatically copied.
Make sure to redeem them as soon as possible because you don’t know when they may expire. Here is a list of valid Slaying Simulator codes you can use to redeem in-game rewards.