Referral codes are a way to give a boost to new users and rewards to existing users.
To find your referral code, tap your avatar and tap the gear icon to access Settings. Then tap “Retrieve Referral Code.”
Then give your code to any friends who aren’t playing the game yet. If they create a character and register that character with Facebook, they will be prompted to enter your referral code after completing the sixth goal in Camp: “Defeat 4 Frostbites.”
Each player that enters a referral code and registers with Facebook starts with an Ultimate Grab Spin. And for every player who enters your code and registers with Facebook, you get a piece of a super rare monster.