We verify these codes regularly. Each code below is confirmed working as of May 2026. Click any platform to see full details on how to redeem your bonus.

Hypedrop
Hypedrop Active
Luxury & Premium
FREEBOX10
Free mystery box on signup
Claim on Hypedrop Full code details →
Lootie
Lootie Active
General & Electronics
FREEBOX10
Free mystery box on signup
Claim on Lootie Full code details →
Cases.gg
Cases.gg Active
Gaming & CS:GO
FREEBOX10
Free case on signup
Claim on Cases.gg Full code details →
HapaBox
HapaBox Active
Gamified & Lifestyle
bestmysterybox
Free mystery box via referral link
Claim on HapaBox Full details →

How Mystery Box Promo Codes Work

Most mystery box platforms offer a signup bonus for new users. This is typically a free low-value box or a small credit that lets you try the platform without spending money. The bonus is applied either by entering a promo code during registration or by signing up through a referral link.

These codes are one-time use per account. Once you have claimed your signup bonus, ongoing promotions like daily free cases and deposit bonuses are available through the platform's regular promotions page.

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Not sure which platform to try? Read our in-depth reviews before you sign up.