New customers signing up to Rialto Casino can currently claim a Spend £10, Get 100 Free Spins welcome offer, focused entirely on slot play. The promotion is built around a single game, Big Bass – Hold & Spinner, and includes wagering requirements and a capped maximum conversion amount.
In this review, we explain exactly how the Rialto welcome bonus works, what you need to do to claim it, how restrictive the wagering terms are in practice, and how this offer compares with other UK casino free spins promotions. We also look at whether the bonus structure makes sense for different types of players.
Rialto Casino Welcome Offer 2026
