18+ only · Play responsibly
Check.casino

Get 300 Free Spins on Big Bass Splash when you deposit and stake £30 on slots

Wagering:10×(winnings only)Min deposit:£30Max bet:£15Valid for:30 daysNew players only
Terms verified yesterday by Check.casino Editorial

18+ only. Gambling can be addictive — please play responsibly. BeGambleAware.org.

Operator T&Cs snapshot

Captured by our editors at time of listing. Operators can change terms without notice — always verify on the live operator page before claiming.

Offer available to new GB customers aged 18+ only. Opt in to the promotion within 7 days of registration. Deposit and stake a minimum of £30 on casino slots using a debit card or instant bank transfer only (Credit Cards, Apple Pay, PayPal, Paysafe Cards, Skrill and Neteller do not qualify). Once the qualifying £30 stake on casino slots has been completed, 300 free spins (each valued at £0.10) on Big Bass Splash will be credited to your account. Free spins expire within 48 hours of being issued and must be used within 7 days of opt-in. Winnings generated from the free spins are subject to a 10x wagering requirement, which must be completed within 30 days of opt-in; unused free-spin winnings are forfeited at the end of this period. The qualifying stake and any bonus funds may only be used on casino slots — use on Live Casino, Table Games, Sportsbook or Racing is prohibited and will result in cancellation of any associated winnings, exclusion from future promotions, or account closure. Maximum bet during the wagering period is £15 per spin on slots. Bonus and free spins are available once only per registered customer, IP address, household address, device, payment method and email address; they cannot be combined with any other Unibet promotional offer. Unibet reserves the right to withhold, restrict or cancel the promotion, and to reclaim bonus funds or winnings, in accordance with its eligibility, bonus-abuse and internal risk policies. General Unibet Terms and Conditions (section 16) apply. 18+ | GambleAware.org. Geographical restrictions apply.

7.2
out of 10
Good
Check.casino bonus score

Good welcome bonus. 10× wagering on winnings is the standout. The main catch: £30 to qualify.

  • Wagering: 10× wagering on winnings
  • Value: Up to £30 + 300 spins
  • Validity: 30 days to use it
  • Min deposit: £30 to qualify
  • Max bet: £15 max bet while wagering

A fixed formula on this offer's verified terms — wagering (38%), value (26%), validity, min deposit & max bet — not an opinion. Always confirm the current terms with the operator before claiming.

Bonus terms — fairness check

Mostly fair

Common restrictive clauses apply (max-bet rule while wagering) — standard for the UK market, flagged here for transparency.

  • moderateMax-bet rule while wagering
    Maximum bet during the wagering period is £15 per spin on slots.

    Bet above the per-spin cap while wagering and the bonus + any winnings can be removed — easy to trip by accident.

Auto-flagged from the operator's own bonus terms (quoted verbatim) — not legal advice. No flag means our checks found none in the terms we hold, not that the terms are perfect. Always read the full T&Cs.

Bonus terms in full

Bonus type
Welcome
Max bonus
£30
Free spins
300
Wagering
10× (winnings only)
Min deposit
£30
Max bet during wagering
£15
Eligible games
slots
Validity
30 days
Eligible countries
GB
New players only
Yes
Minimum age
18+
Play responsibly

18+ only. Gambling can be addictive. Set deposit and time limits before you play. Visit BeGambleAware.org for free, confidential support, or call the National Gambling Helpline on 0808 8020 133.