Flush

Flush has one of the best conduct records in this comparison and a licence we could not find in any public register. We had it at 9.1 on the strength of the first half of that sentence. This review is about the second half.

The licence claim does not check out

Flush.com is operated by King of Clubz B.V., and this site previously presented "Curaçao, registration number 161495" as its licence. We checked both against the Curaçao Gaming Authority's own register of online gaming licences, the PDF dated 6 August 2026 listing 660 licences.

Neither King of Clubz B.V. nor the number 161495 appears anywhere in it. We also checked the regulator's enforcement register dated 10 July 2026: the company is not listed there either, so there is no revocation — the licence simply cannot be verified.

And the number itself was never a licence. 161495 is a Willemstad company registration number, which identifies a company; it does not say that company holds permission to run gambling. Real Curaçao licences look like OGL/2024/…, and the master-licence system that used to sit behind these claims lapsed on 31 January 2025.

The conduct record, which is genuinely good

Casino.guru gives Flush a safety index of 8.3 out of 10, in its "very good" band, with 2 resolved, 16 rejected and zero unresolved out of 18.

An empty unresolved column means no dispute has ended with the casino abandoning the process. The sample is small — eighteen complaints is not much to go on — but nothing in it is bad, and for a site trading since 2020 that is a fair signal.

Why the gap matters anyway

An unlicensed or unverifiable operator can behave impeccably for years, and Flush's record suggests it has. The problem is the day it stops. With no licence we can locate, there is no regulator to complain to, no dispute body with jurisdiction and no licence that can be withdrawn as leverage. Your only route is voluntary mediation, which works exactly as long as the operator wants it to.

The product

Flush is crypto-only with a large catalogue: slots, live dealer tables, blackjack, roulette, and a rakeback-and-levels model rather than one big welcome number. Withdrawals are its selling point and, on the evidence above, that claim holds up.

Why 6.0, down from 9.1

Same treatment as FortuneJack, which has an 8.7 independent index and sits at 6.0 for the same reason. We start from 8.3 and take off more than two points for operating with no licence we can verify at source. The clean unresolved column is what keeps it from falling further.

If Flush publishes a licence number that resolves in the CGA register, tell us and we will re-check and update. Until then, treat it as an unlicensed operator: deposit only what you would be content to part with, and read responsible gambling first.

Verified on 14 August 2026 against the Curaçao Gaming Authority register of online gaming licences dated 6 August 2026, its enforcement register dated 10 July 2026, and the independent complaint history on Casino.guru.