New Online Casinos 2025: New Casino Sites for UK Players

This holds for non GamStop casinos we’ve featured in this list. Some brands give up to 400% and free spins, while UK sites tend to cap their offers at 100%. Oftentimes, non GamStop casino bonuses cover the first few deposits and include low wagering requirements of x15 to x40. For example, Lucky Mister Casino bestows newcomers a dazzling 500% bonus plus 500 free spins, as Bass Win Casino splits its 450% across your first 3 deposits.

Table & Card Games

It is standard practice discowin among new casinos to offer enticing welcome packages. Often these packages consist of free spins or no-deposit offers, awarded as soon as newcomers create their accounts. Players are then rewarded again when they make their first deposit at the casino.

Best New Casino Sites UK – September 2025

Donbet is a safe non-GamStop casino operating under the watchful eye of the Government of Curacao. The brand is known for its responsive support and fast withdrawals, placing it among UK online casinos not on GamStop worth checking out. BetMGM has popular slot games from providers like Playtech casino and Pragmatic Play casino, and the BetMGM exclusive, branded titles are a must for all keen casino fans.

Best New Casinos

3 Oaks Gaming is a casino game provider that was founded in 2021. They are among the newest UK casino game providers as they have just received their UKGC license in 2025. These new payment solutions provide more flexibility and cater to players with different needs.

We rank the best new casinos in the UK based on their bonuses, slots and games, withdrawal times, and individual features. Deposits at non-GamStop casino sites are always instant without regard to the method used. In most cases, withdrawals are processed swiftly without verification checks. UK players will also appreciate the absence of fees and the ability to use GBP at the majority of these platforms. You can bag a total of 450% and 375 FS on your first 3 casino deposits, as well as 150% on sports. Whether you prefer credit cards, e-wallets, bank transfers, or crypto, BassWin supports them all.