If you like the idea of a mystery box site focused on trading cards, Boxed.gg is worth a look. As a new user, you can claim a free mystery box when you sign up, and no promo code is required. There ...

Courtyard.io is one of the hottest mystery box platforms right now – but you won’t find any traditional promo codes here. Instead, everything runs through its Points system. There’s no welcome bonus, ...