All Kwiff Sister Sites & Alternatives for UK Players
There are 2 direct Kwiff sister sites: GRP Casino and Slots King, operating in the UK under #44448. To provide you with a deeper understanding of their offerings, we have compared them to five similar sites: BresBet, Midnite, Octobet, 36vegas and RightBet.
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Min £30 real-money wager on Big Bass Football Bonanza to receive 100 x £0.10 free spins. New customers only. Must use code BB100FS on sign-up. Free spins credited by 12pm noon the day after qualifying. Free spins valid for 7 days and winnings subject to a 10x wagering requirement on Big Bass Football Bonanza, to be completed within 7 days. UK residents aged 18+. One reward per customer/household. Subject to BresBet General Terms & Conditions. - 18+ New customers only. Wager £20 or more on Midnite Casino within 14 days of sign-up. Get 150 Free Spins to use on selected games, valued at 10p and valid for 7 days. T&Cs apply. BeGambleAware.org
- Welcome Offer – Casino. Get 50% casino net losses back as bonus fund match up to £100 on your first day! T&Cs Apply
- Deposit and wager £36 on Casino Slots and get a 136 Free spins on selected games. Free Spins require a 2x wagering before withdrawal, with no maximum win limits. New customers only. The bonus will expire 7 days after being granted. The offer can only be claimed on the first deposit of £36 or more, once per account, and cannot be used in conjunction with the current sports welcome offer. Selected games for free spins are, Floating Dragon – Dragon Boat Festival, Magic Money Maze & Crown Of Fire. 36 Vegas may restrict or exclude any customer from this promotion at its discretion, including for compliance, risk, account behaviour, or responsible gambling reasons. Invited selected accounts only. General bonus terms and terms and conditions apply
- 18+. New players only. Min deposit and wager £20 on Big Bass Splash. 20 free spins (£0.10 per spin) on Big Bass Splash with no wagering on winnings. Must be claimed within 7 days. Full T&C’s apply.
Who Owns Kwiff and Its Sister Sites?
Kwiff is owned by Eaton Gate Gaming Limited, which has offices in both London and Malta. They are licensed to offer casino gaming, sports betting and gambling software in the UK by the Gambling Commission (#44448).
About Eaton Gate Gaming
Although Kwiff is their main platform in the UK market, Eaton Gate Gaming has been known for other brands: GRP Casino and SlotsKing amongst them.
Registered with Companies House back in 2015, Kwiff was launched that same year – their USP is a ‘supercharged’ betting experience, in which the odds of any bet can be randomly boosted.
Kwiff vs Similar Sites Comparison
As noted earlier, we’ve opted to compare Kwiff with other sports betting-casino hybrids, so you can get a better gauge of how their casino offering stands up.
| Casino | Game Library* | Sportsbook | Unique Feature | Average RTP | Official Link |
|---|---|---|---|---|---|
 | 5,810+ games | In house | Casino Supercharge | 91.49% | PLAY HERE |
 | 2,170+ games | Playbook Engineering | Loyalty Rewards, Regular offers | TBC | Read review |
 | 2,680+ games | In house | Casino Club | 94.91% | PLAY HERE |
 | 1,420+ games | EveryMatrix | Cashback for new players | 95.41% | PLAY HERE |
 | 1,680+ games | EveryMatrix | Game provider promos | TBC | PLAY HERE |
 | 3,460+ games | Delasport | Slic sportsbook | 91.21% | PLAY HERE |
Note: Game Library information was updated on 11/06/2026. The number is subject to change, as they constantly add new games and take down some for maintenance.
And the answer is very well, actually. Kwiff offers one of the strongest casino experiences we have seen from a brand that has generally promoted its sports betting offering more prolifically over the years. Despite that, the casino falls short of the average RTP as opposed to Midnite and OctoBet.
Game Library Analysis
More than 5,800 games await you at Kwiff, with expansive coverage across slots, tables games and live casino. They also offer exclusive games that you won’t find elsewhere.
| Sister Sites | Slots | Live Casino | Crash/Instant | Search Filter |
|---|---|---|---|---|
| Kwiff | 5,400+ | 221 | 18 | Provider, theme, mechanics |
| BresBet | 2,029+ | 121 | 4 | Game name, provider |
| Midnite | 2,300+ | 112 | 67 | Game name, provider, popularity, newest |
| OctoBet | 900+ | 455 | 13 | Game name only |
| 36vegas | 1,060+ | 603 | 5 | Game name only |
| RightBet | 3,350+ | 63 | 30 | Game name, provider |
None of the comparison sites we have chosen can even get close to that depth and quantity, with Kwiff’s platform holding another trump card in its game search filter.
You can browse their library by name, provider, theme and even game mechanics, which makes the task of finding slots to suit your needs all the more efficient.
Unique Promo Analysis
Aside from a welcome offer, Kwiff aren’t the most forthcoming when it comes to promotions – access to Evolution’s version of Drops & Wins events is about the best they can do.
Preference in this regard is for BresBet, who offer free bets and casino cash drops each week, as well as ‘bet and get’ free spins deals.
Midnite have their own version of a loyalty programme; their ‘Casino Club’ provides players with free spins when they meet specific wagering targets.
Kwiff
BresBet
Midnite
Kwiff & Alternative Sites Withdrawal Times
We have tested the payout speed of Kwiff. Our Visa withdrawal was complete in 20 hours – pretty slow by the average standard, you’d have to say.
Compare that to Midnite – who completed our Visa withdrawal instantaneously – and RightBet, who took six minutes, and you get an idea of how slow Kwiff were in our analysis.
- InstantWithdrawal TimeRevolut CardsMethod
- InstantWithdrawal TimeApple PayMethod
- InstantWithdrawal TimeVisaMethod
- 2 minutesWithdrawal TimeTrustlyMethod
- 6 minutesWithdrawal TimeVisaMethod
- 3 hours and 23 minutesWithdrawal TimeVisaMethod
- 20 hoursWithdrawal TimeVisaMethod
Kwiff Sister Sites – Our Verdict
In this article, we’ve learned that Kwiff offer an excellent casino platform to their players, with a huge range of games available.
Yes, their promotions could be better – both BresBet and Midnite shine brighter when it comes to value-adding promos, while payout speeds are on the slow side… RightBet were much faster in our testing.
#1 Alternative Casino - Midnite
Pros
- Original Sportsbook & 2,600+ Casino Games
- Rewards Club for Casino and Sports Players
- £5 Minimum Deposits + Instant Withdrawals (Tested)
Stake £20 Get 150 Free Spins on Big Bass Splash
| Min. Deposit | £20 |
|---|---|
| Max. Amount | 150 free spins |
| Turnover | No wagering |
| Expiration | 7 days |
| Bonus Code | CASINO20GET150 |
#2 Alternative Casino - RightBet
Pros
- Game Library of 3,600+ Titles
- Accepts Card, E-Wallets & Bank Transfers, Including Google Pay
- New Casino Site Launched in 2026
Claim 20 Free Spins on Big Bass Splash
| Min. Deposit | £20 |
|---|---|
| Max. Amount | 20 free spins |
| Turnover | No wagering |
| Expiration | 7 days |
FAQs
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Craig has been writing about the online betting sector for more than a decade. He’s been having a flutter on the football, trying to master basic blackjack strategy and testing out the latest slots for even longer.
