Honest casino and bookmaker reviews, built from data

Every operator is scored on the same 6 factors, from safety and fair T&Cs to payments and support. We list every bonus with its full wagering terms and track RTP and volatility for every game.

  1. 1

    Neospin Casino

    Tobique Gaming Commission (TGC) · Anjouan Gaming (AOFA) · Est. 2022

    1st deposit: 100% up to €1,000 + 100 free spins40× bonus

    7.5 RatingGood
    Get bonus
  2. 2

    PlayCroco Casino

    Est. 2020

    200% up to A$5,00030× bonus + deposit

    4.0 RatingBad
    Get bonus

18+ · T&Cs apply · BeGambleAware.org

Online casinos

We review casinos whether they like it or not. Every brand is scored from facts, its licence, terms and limits, bonuses, support and payments, by the same rules, and its review shows each of them.

47casino reviews

Reviewed online casinos

0 10 20 30 40 Dec Feb Apr Jun Aug Oct

Casino and bookmaker rankings

18 facts behind every rating

Licence, track record, complaints, limits, bonus terms, support and payments: the same facts for every brand, each shown in its review.

Casino bonuses

Every bonus is listed with its full terms: wagering, max bet, max cashout and the countries it is for. Exclusive codes come first, and you only see offers you can claim.

37active bonuses

New bonuses added

0 500 1,000 1,500 2,000 Dec Feb Apr Jun Aug Oct

Featured bonuses

Exclusive codes first, then the best-rated brands. Wagering, max bet and max cashout on every card.

37 bonuses with their full terms

Wagering, max bet and max cashout on every offer, so you can compare them before you sign up.

Game charts

Top-rated casinos

Ranked by our rating: safety, fairness, bonus terms, support, payments and game variety.

74 licences checked in regulators' registers

We look a licence up in the regulator's own register before we call it verified.

Best bookmakers

Sports betting sites rated with the same method as casinos. Bookmakers are not scored on game variety.

Reviewed
33
Sports bonuses
0
Top rating
9.1
Compare bookmakers
  1. 1

    Betway Casino

    MGA · UKGC · Est. 2006

    100% up to €2550× bonus

    9.1 RatingExcellent
    Not available in United States Read review
  2. 2

    PokerStars

    MGA · UKGC + 13 more · Est. 2001

    8.9 RatingVery good
    Not available in United States Read review
  3. 3

    Stake Casino

    Curaçao Gaming Authority (CGA) · Est. 2017

    Rakeback of 3.5% of the house edge with a welcome code0× bonus

    8.8 RatingVery good
    Not available in United States Read review

Newest published content

  1. Blackjack Basic Strategy

    The full blackjack basic strategy: charts for every hand, the math behind the toughest calls, and the changes for single-deck games and othe...

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  2. Bonus Hunting – The Abusing of bonuses offered by online casinos

    What bonus hunting is, the expected-value math behind it, why casinos treat it as abuse, and why voided winnings, closed accounts and bad lu...

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  3. Card Counting in Blackjack

    How card counting in blackjack really works: the running and true count, seven popular systems side by side, the index plays that go with th...

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  4. Cashable Versus Non-Cashable Sticky Bonuses

    The difference between a cashable bonus and a non-cashable sticky bonus, the main sticky types and how to compare the two with real numbers.

    Tomasz Wiśniewski

  5. What Are Cashback Bonuses and How Do They Work?

    How casino cashback works, how the refund is worked out and which terms decide whether it reaches you as cash.

    Tomasz Wiśniewski

  6. Casino Bonus Mathematics – Understanding Clearing Bonuses

    The arithmetic behind clearing bonuses: total wagering, the expected cost of playing it through, and the terms that change the result.

    Tomasz Wiśniewski

  7. Maximum Bet Rule of Online Casino Bonuses Explained

    How the maximum bet rule limits your stake while a bonus is active, how to work out your own limit and how to avoid breaking it by accident.

    Tomasz Wiśniewski

  8. Baccarat Variants – Full Rundown and Overview

    Seven baccarat variants side by side: who holds the bank, how the Banker bet is paid, what the house edge is and which version suits which p...

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How we rate casinos and bookmakers

Every review scores the operator from 0 to 10 on the same 6 factors, each with a fixed weight. A generous bonus means nothing if the licence is weak or the terms let a brand keep your winnings, so safety and fairness weigh the most. The rating is the weighted average, minus penalties for problems we find in the T&Cs.

Then penalties are taken off

  • Each unfair T&C clauseits own penalty, off Fairness
  • Withdrawal limit below our minimumup to −0.5
  • Any cap on winningsup to −0.3
  • No licencecapped at 4.0

Rating factor weights

6factors

  • Safety
  • Fairness
  • Bonus terms
  • Support
  • Payments
  • Game variety

Bookmakers are scored on odds and their betting offer instead of game variety. A brand that is both a casino and a bookmaker is rated as each, and gets the average.

Worked example Betway Casino

FactorScoreScore × WeightPoints
Safety 10.0 × 3 30.0
Fairness 9.6 × 2 19.2
Bonus terms 7.3 × 1 7.3
Support 9.5 × 1 9.5
Payments 8.7 × 1 8.7
Game variety 7.3 × 1 7.3
Odds 7.4 × 1 7.4
Betting offer 9.7 × 1 9.7
Weighted average
99.1 ÷ 119.15
Penalties
None0.0
Rating
9.1

PlayCroco Casino loses 1.4 points for 7 unfair T&C clauses and having no licence, which is why it sits at 4.0.

Frequently asked questions

Short answers about our ratings, bonuses and how we make money.

How is the 4Gamblers rating calculated?
Each operator gets a 0–10 score for safety (×3), fairness (×2), bonus terms (×1), support (×1), payments (×1) and game variety (×1). Each unfair T&C clause lowers the Fairness score by its own penalty. We take the weighted average and subtract penalties: a low withdrawal limit costs up to 0.5 and a cap on winnings up to 0.3, the more the lower they are. Bookmakers are scored on their odds and betting offer instead of game variety; a brand that is both gets the average of the two.
Do casinos pay for a better rating?
No. We may earn a commission when you sign up through a "Visit" or "Get bonus" link, but operators cannot buy factor scores. Brands we cannot recommend stay listed, with their problems in plain view.
Why can't I see some bonuses in my country?
Many offers are limited to certain countries, and some brands do not accept players from every country. We show the bonuses you can claim from United States; change the country at the top of the page to see other offers.
What does "35× bonus + deposit" wagering mean?
You must bet 35 times the bonus plus your deposit before you can withdraw. With a €100 deposit and a €100 bonus, that is €7,000 in bets. "35× bonus" would be €3,500, and "40× winnings" on free spins applies to what the spins win.