Mister X sister sites

Bizzo Casino, Gonzo Casino and five other sites share the set-up behind Mister X, making seven lookalike sisters with no confirmed operator. Mister X itself is not on the UK Gambling Commission register.

Not UK-licensedLast reviewed 8 Nov 2026
Mister X is not licensed in the UK

It is not on the Gambling Commission register. GAMSTOP does not cover it, and UK rules on fair terms, complaints and safer gambling do not protect you there.

UK-licensed offers
Mr Vegas
100% up to £200 + 100 Free Spins
Claim offer
Terms apply
New customers only. Min deposit £20; 35× wagering on bonus; Free Spins on selected slots. 18+. Full T&Cs apply. BeGambleAware.org.
All British Casino
100% up to £100 Welcome Bonus
Claim offer
Terms apply
New customers only. Min deposit £20; 45× wagering on bonus funds before withdrawal. 18+. Full T&Cs apply. BeGambleAware.org.
Duelz
100% up to £100 + 100 Free Spins
Claim offer
Terms apply
New customers only. Min deposit £10; 30× wagering; spins on selected slots. 18+. Full T&Cs apply. BeGambleAware.org.
Midnite
Wager £20, Get 100 Free Spins
Claim offer
Terms apply
New customers only. Free spins are valued at 10p and valid for 7 days. Further T&Cs apply.

7 similar sites

Likely, not proven
Same software, design and payment set-up as Mister X. We have not found a licence or company record that proves one owner.
75/100

SisterScore: our 0–100 rating from thousands of player reviews on trusted review sites and official app stores. Unhappy players post more often, so we adjust for that. Poor is under 40, mixed 40–59, good 60–74, great 75 and up. Scores marked est. are estimates for newer sites: their own reviews so far, blended with the scores of their sister sites (same company, same payments and support). How SisterScore works

Bizzo CasinoCasino
75/100
No verified offer right now
Visit Bizzo Casino
Fontan CasinoCasino
New
No verified offer right now
Visit Fontan Casino
Gonzo CasinoCasino
New
The X Factor Games CasinoCasino
New
Osiris CasinoCasino
New
GxmbleCasino
New
400% bonus with 5x wagering
Terms apply
Bonuses come with a 5x wagering requirement, meaning you need to wager the bonus amount five times before you can withdraw any winnings.
Visit Gxmble
Bet2u CasinoSportsbook
New

UK-licensed alternatives

Most similar first
UK-licensed sites on other licences, closest to Mister X first: the same type of games and a similar SisterScore.
MidniteSportsbook & casino
90/100
Wager £20, get 100 free spins
Terms apply
New customers only. Free spins are valued at 10p and valid for 7 days. Further T&Cs apply.
Read reviewVisit
LottomartCasino & lottery
92/100
Stake £10 on slots, win up to 500 free spins
Terms apply
New players only. Opt-in required. Min £10 cash stakes on slots to qualify. Prize Wheel must be used & Free Spins claimed within 4 days. Free Spins must be played within 24 hours of claim. Free Spin winnings credited as cash. Max 1x claim. Full prize list in main terms. 18+. BeGambleAware.org. Terms apply.
Read reviewVisit
MatchbookSportsbook
91/100
10% rebate on losses
Terms apply
10% Rebate on Losses; Back our Over 2.5 Goals Treble Tonight!
Read reviewVisit
LottoGoLottery & casino
92/100
Deposit £20, get up to £200 + 100 free spins
Terms apply
18+. New Players Only. GambleAware.org Minimum Deposit £20, 10x wagering in 7 days, Max Bet £5, Max Win applies. Spin value £0.1 each. 50 spins added immediately, 50 -24h later. Full T&Cs apply. Take time to think. I View T&Cs here
Read reviewVisit
Paddy PowerSportsbook & casino
86/100
Bet £5, get £40 in free bets with code YSKATF
Terms apply
Use promo code YSKATF. Bet €/£5, get €/£40 in free bets. T&Cs apply.
Read reviewVisit
MrQCasino & bingo
82/100
Deposit £10, get 100 free spins on Big Bass Splash
Terms apply
100 Free Spins credited upon first £10 deposit on Big Bass Splash slot only, valued at 10p per spin; free spins must be used within 48 hours of qualifying; all winnings are uncapped and credited to your real money balance.
Read reviewVisit

Mister X sister sites FAQ

Is Mister X licensed in the UK?

Mister X is not on the Gambling Commission register, so it holds no UK licence. GAMSTOP does not cover it, and UK complaint routes offer no protection to people who use it.

What are the Mister X sister sites?

Seven sites share its set-up: Bizzo Casino, Fontan Casino, Gonzo Casino, The X Factor Games Casino, Osiris Casino and 2 more. The link is the shared set-up only, as one owner has not been proven.