How we rate crypto casinos | Casino Bonus Kingdom

Who rates

Martin has more than ten years of experience as a player at online and land-based casinos, six to seven of them at crypto casinos, and today works inside a crypto casino in support, withdrawal approvals and fraud checks. That gives every review two views: what it's like to wait on a withdrawal or read bonus terms as a player, and what the casino is checking on the other side.

This is experience, not a winning system. Nothing on this site is a way to make money from gambling: over time the house wins. More on the About page.

The rating categories

Each review shows 7 sub-scores from 0 to 10. They cover what players actually ask about when they switch casinos, not how big the welcome banner is. A category we haven't scored yet shows as "Not rated yet" rather than a guess.

Trust & licensing: License type and whether it can be found on the regulator's public register, how open the operator is about who runs it, any regulator actions, and patterns in player complaints.
Payouts: How fast withdrawals usually go through, including large ones, plus withdrawal limits, fees and how often payouts get held for a manual review. Our withdrawal times come from the author's own experience as a player and from working inside a crypto casino, where he approves withdrawals. They show what a normal withdrawal looks like, not a guarantee.
KYC reality: When the casino really asks for ID, and how predictable that is. Clear written rules score higher than "no KYC" that turns into a surprise document request after a big win.
Bonuses & terms: How clear the terms are: wagering and what it applies to, max bet, max cashout, which games count, and traps like activation windows or bonuses you have to request in live chat.
Rakeback & VIP: The rate together with what it's based on (house edge, amount wagered or net losses), whether it's paid without wagering, and whether unclaimed rewards expire. Most casinos don't publish their rakeback rates, even to logged-in players. Where a casino does, we show the number; where it doesn't, we say so.
Games & house edge: Quality of the in-house originals, how openly the house edge or RTP is shown, and how quickly new releases arrive.
Support & reliability: Whether support can help beyond template answers, and how often the site is down or games won't load.

We don't calculate a "bonus value": game contribution, max bet and max cashout vary too much for one number to be honest. Bonus terms are shown as plain facts instead.

How the overall score is set

The overall rating is set by hand. It is not an average of the sub-scores: one serious problem, like a lapsed license or a pattern of refused withdrawals, matters more than good support or a big bonus. Red flags listed on a review always weigh into the overall score.

8.5 and up: excellent. Few casinos get here.
7.5 – 8.4: great, with a few weak spots.
7.0 – 7.4: good, with clear weak spots.
5.0 – 6.9: mixed. Read the red flags before you deposit.
Under 5: poor. We list it so you know why to stay away.

The score ring is gold from 7.5, so the strongest casinos stand out in every list.

Scores are spread out on purpose. A list where every casino is "9.8, the best" tells you nothing.

Where the information comes from

Every review combines four sources:

Official terms and the casino's own website: license, restricted countries, bonus terms, rakeback and VIP rules, payment methods, KYC and VPN policy.
Regulator registers: where a regulator publishes a public register, we look the license up there instead of trusting the logo in the casino's footer, and note any regulator actions against the operator.
Player reports: public complaints, forums and community discussions, read critically. One angry post isn't a pattern; many similar ones are. When we use them, the review says "players report", not "we found".
The author's own experience: as a long-time player and from inside a crypto casino. Personal experience is marked as such, usually in the "Insider note".

Withdrawal times. Typical time, based on the author's experience. This is the typical time for a normal crypto withdrawal: no extra verification needed, ordinary play (for example slots only, no bonus abuse or suspicious activity) and amounts that aren't unusually large. First withdrawals, large amounts or anything that triggers KYC or a manual review can take longer. They aren't timed tests; if we ever run those, the reviews will carry a clear "Tested" label with the details.

When a casino doesn't publish something (a rakeback rate, a max cashout, a game count), the review says "Not published" instead of guessing.

Payments

Most crypto casinos don't take card or e-wallet payments themselves; they send you to a third-party on-ramp (MoonPay, Swapped, Banxa…) that charges its own fees. We show which is which.

Red flags

Every review has a red-flags section, and every red flag links to its source. Red flags come only from the casino's own terms and conditions, regulator decisions, court rulings or credible press. Review-site scores and complaint threads (Trustpilot, Casino Guru and similar) are not used as red flags. If we haven't checked a casino for red flags yet, the review says "Not checked yet" rather than implying it's clean.

How reviews are kept up to date

Casinos change their terms often. Each review shows a "Last updated" date: the day its facts were last checked. We change that date only when we actually re-check something, never just to make a page look fresh. Real changes are listed under "What changed" on the review.

When a casino changes something that matters (bonus terms, KYC rules, payout behaviour, a new restricted country, its license), the review and, if needed, the rating are updated. If you spot something out of date, tell us at contact@casinobonuskingdom.com and we'll check it.

King's Choice

King's Choice is our pick for one specific thing, not an overall "best casino". The categories are:

The rules:

It's rare on purpose. Most categories have one pick, or none.
When you sort or filter the casino list by a category, its King's Choice is shown in a clearly labelled block above the list. The list itself stays in its honest order, so the same casino also appears in its real position.
It's only shown when the pick matches the filters you chose and accepts players from your country.
A casino whose review is still a draft is never King's Choice.
A casino the author works at is never King's Choice, however good it is. Right now that'sOPDuel.
King's Choice can't be bought, and having an affiliate deal doesn't earn it.

Ratings and money

This site earns commissions through affiliate links (see the affiliate disclosure). That never changes a rating, a red flag or a King's Choice. Casinos can't pay for a better score or a higher position.

Martin works at OPDuel, which is listed on this site. Its review and its card carry a clear employment disclosure, and it is never King's Choice, so you can weigh its rating knowing that.