300% Bonus Casinos

A 300% casino bonus or higher offers some of the most significant incentives among online casinos. This type of bonus can be found in various forms, such as deposit match bonuses, cashback bonuses, and even no deposit bonuses, providing users with more significant opportunities to increase their winnings. To ensure an advantageous interest rate for players, these bonuses are often accompanied by strict requirements regarding minimum deposits, play-throughs, and other criteria. It is essential to thoroughly review all the associated specifications before taking advantage of this type of offer to avoid any surprises in the long run.

Coral Casino

Coral Casino

Welcome Bonus

500% Bonus Up To £50

  • Payment Apple Pay, PayPal, paysafecard + 10 more
  • Games Providers NetEnt, Microgaming + 24 more
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New customer offer £50 Welcome Bonus when you play £10 on Slots. 18+. New Casino players only. Deposit req (certain types excluded). Bet £10+ on qualifying games to get a £50 Bonus (selected games, 40x wag req, accept within 14 days, valid for 30 days). T&Cs apply.
Eclipse Casino

Eclipse Casino

Welcome Bonus

300% Bonus Up To £3,000

  • Payment paysafecard + 7 more
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Welcome offer 300% Slots Match up to £3000 and 100% Cashback on first 3 deposits. Use code ECLIPSE300. Valid on the first three deposits. Minimum deposit £25+ on slots and specialty games only. PT X 40, no maximum cashout. Cashback is given in the form of a Free Chip, PT x50, maximum cash out x5, to be claimed in Live Chat. Terms apply.
Golden Lion Casino

Golden Lion Casino

Welcome Bonus

300% Bonus Up To £3,000

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    300% Welcome Bonus up to £3000 and 10% Cashback on 1st deposit using code ROAR300. Code is valid once for new players only, on deposit £25. PT x40, no maximum cash-out, valid on slots and specialty games only. Cashback is given in a form of a Free Chip, PT x50, maximum cash out x5, to be claimed in Live Chat. Terms apply
    Harry’s

    Harry’s

    Welcome Bonus

    300% Bonus Up To £2,500

    View Terms Here

    • Payment Klarna + 13 more
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    Welcome package offering 650% up to £5000 over 3 deposits, starting with 300% Bonus up to £2500 on 1st deposit. New players only. Opt in required. Minimum deposit £25. Welcome Casino Package Bonuses are subject to WR 50x within 10 days of bonus activation. Welcome Casino Package is only for Slots for the providers: Egt, Amatic, Netent. Full terms apply
    Lady Linda Casino

    Lady Linda Casino

    Welcome Bonus

    300% Bonus Up To £1,000

    • Payment Klarna + 13 more
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    Welcome offer 300% up to £1000. New players, 1st deposit only. Opt in required. Minimum deposit £25. Welcome Casino Bonus can be used on slots and only on the following Providers: Egt, Amatic, Netent. Welcome Casino Bonus is subject to WR 45x. Full terms apply.
    Luck of Spins

    Luck of Spins

    Welcome Bonus

    300% Bonus Up To £1,200

    • Payment Klarna + 7 more
    • Games Providers NetEnt, Microgaming + 54 more
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    Welcome offer 300% Bonus up to £1200. New registrations only, 1st deposit only. Minimum deposit £25. Maximum Bonus £1200. Welcome Casino Bonus can be used on slots and only on the following Provider: Egt, Netent, Novomatic, Play n go, Pragmatic, Amatic. Bonus amount is subject to a wagering requirement of 45x within 45 days. General Terms and Conditions apply.
    Nevada 777

    Nevada 777

    Welcome Bonus

    300% Bonus Up To £10,000 + 50 Bonus Spins

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      Welcome offer 300% Bonus up to £10000 and 50 Free Spins on 1st deposit. PLUS Claim 300% and 50 Free Spins again on the 2nd deposit. Coupon code WELCOME1 required. Minimum deposit £25. Free spins valid on Cash Bandits 3. WR 20x deposit + bonus amount. Winnings from Free Spins will be subject to wagering of 45x. Full terms apply.
      Platinum Club VIP

      Platinum Club VIP

      Welcome Bonus

      300% Bonus Up To £3,000

      • Games Providers NetEnt + 32 more
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      Welcome offer 300% Bonus up to £3000. New registrations, 1st deposit only. Minimum deposit £25. Opt in required. Welcome Bonus can be used on slots and only on the following Providers: Egt,, Amatic, Netent. Bonus is subject to wagering requirement of 40x. Full terms apply.
      Slots And Casino

      Slots And Casino

      Welcome Bonus

      300% Bonus Up To $1,500 + 100 Bonus Spins

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        Welcome offer 300% deposit match up to $1500 and 100 free spins. New players only. Minimum deposit $25. WR 30x deposit + bonus. Free spins credited as 10 per day over 10 days. WR 30x applies to Free Spins winnings. Free Spins can be used on specified games only including Mystic Wolf, Five Times Wins and Jumping Jaguar. Free spins are only availabe to players who have not already won and requested a withdrawal. Full terms apply. Players who wish to deposit using Bitcoin can claim a 500% welcome bonus.
        Slots n Roll

        Slots n Roll

        Welcome Bonus

        300% Bonus Up To £5,000 + 50 Bonus Spins

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          Welcome offer 600% Bonus and 100 Free Spins over your 1st 2 deposits, starting with 300% Bonus and 50 Free Spins on Cash Bandits 3 on 1st deposit. Coupon code WELCOME1 required. Min deposit £25. Maximum Bonus £5000. Maximum winnings from Free Spins £50. WR Bonus 20x. WR Free Spins winnings 45x. Full terms apply.