18+ only. Safer gambling

Educational

Offer structures, not headline bait

On UK Silver Terrace we score how clearly an offer is explained, not how loud the number looks. This page stays factual: what common bonus types do, and which clauses decide whether they suit you.

We do not list live promotional amounts here. Those change. Always open the operator’s current terms.

Welcome offer shapes

Matched funds

The operator credits bonus balance as a percentage of a qualifying first deposit, up to a stated cap. Bonus balance is usually separate from cash until wagering clears.

Free spins packages

A set number of spins on named slots. Wins often land as bonus funds with their own wagering. Game lists and spin values sit in the small print.

Hybrids

Match plus spins in one package. Read both halves — stake limits on spins can differ from the match portion.

Cashback-style credits

A percentage of net losses over a period returned as bonus or cash, depending on the wording. Timing windows and game exclusions matter.

Wagering requirements

Wagering (or playthrough) multiplies the bonus — sometimes bonus plus deposit — before funds convert to withdrawable cash. A 1× requirement is light; higher multiples need more turnover. Contribution tables decide how much each game type counts: many slots contribute 100%, while table games may contribute less or zero.

Also watch max bet while a bonus is active, expiry timers, and country eligibility. UKGC-licensed brands must present key terms clearly; if anything feels vague, skip the opt-in.

How this ties to our shortlist

Paddy Power and LottoGo tend to document offer mechanics in familiar Flutter / lottery-hybrid patterns. Casushi usually frames a bonus-plus-spins style welcome. Hollywoodbets and GRP Casino lean on standard match-style packages — always verify the live page. We never treat an offer as “risk-free” or guaranteed value.