You can get the gift code Legacy of destiny, Brave Dungeon, Celestial Age, Land of Angel, จอมยุทธ์หยกเทพ, จอมใจยุทธภพ, 進撃三国志, 진정 on the unlock.game site. follow the following guide.
1.visit official unlock.game website. Then press login button in top right
2. Login your UnlockGame account or you can create new account.
3..Click your game and confirm the gift code. If you can’t find your game, just click welfare icon on top right.
4.After you press a claim button, you will get a gift code. A pop up will appear on the screen. Use the code in the pop up.