Curious what today’s box holds? At SlotSite Casino, the Mystery Box gives you a fresh free-spin reward every day from Monday to Thursday. Deposit $20+ with code MBOX, open your box, and reveal 25–100 free spins—stack it across the week for up to 400 spins.
Promo Window & Eligibility (Mon–Thu, CEST)
Valid each week from Monday 02:00 CEST to Friday 01:59 CEST.
One Mystery Box per day (redeem daily within the window).
To qualify, deposits must be made via the casino cashier.