Slot Site Casino gives existing players a Mystery Box minigame. You'll need code MBOX and a deposit of at least $20 to claim it.
The box holds a random prize of 25 to 100 free spins; the spins work on slots. The offer runs from Monday at 00:00 GMT until Thursday at 23:59 GMT. Each player can redeem it once per day.
Free spins carry a 50x wagering requirement. The expiry date is 2026-10-29. It's an offer for players who already hold an account and want extra spins on the slots they play.
A $20 deposit is the entry point, and the code MBOX must go in at deposit. The prize inside the box is random, so the number of spins varies between 25 and 100.
Redeem once per day during the Monday to Thursday window. The offer ends on 2026-10-29.
The wagering requirement is 50×.
The minimum deposit is $20.
Yes — use bonus code MBOX when you claim the offer at Slot Site Casino.
This offer is valid until 2026-10-29.