Sister Sites List is an independent casino-comparison site. We research which online casinos are sister sites — brands that share the same operator, licence, software platform or affiliate programme — and publish what we find so players can compare related casinos in one place. This page explains how we put those lists together and the standards we hold them to.
How we identify sister sites
We treat two casinos as sisters when they share one or more of the following: the same parent operator or company, the same gaming licence, the same games platform (for example Realtime Gaming, Rival, Microgaming or SoftSwiss), or the same affiliate programme and payment-processing footprint. We confirm these links from operators’ own terms and about pages, licensing registers, and the technical signals a casino exposes, rather than copying other lists.
What we check in every review
- Licensing & safety — who regulates the casino, and whether players in a given country are actually accepted.
- Bonuses & fair terms — headline offers read against the wagering requirements, game weightings and withdrawal caps that decide their real value.
- Games & software — the platforms powering the casino and the breadth of slots, tables and live games.
- Banking — accepted deposit and withdrawal methods (including crypto and Interac where relevant), payout speeds and any fees.
- Support & reputation — contact channels, response quality, and the operator’s track record with players.
Independence & affiliate disclosure
Some links on this site are affiliate links: if you sign up through them we may earn a commission, at no extra cost to you. This never changes whether a casino is listed, how it is described, or where it ranks — our lists are built on the sister-site relationship and the checks above, not on who pays the most. Where a casino does not accept players from your country, we say so rather than send you to a dead end.
Keeping lists current
Casino ownership, bonuses and accepted countries change often. We revisit and update our pages as those details change, and each review shows when it was last updated. If you spot something out of date, please let us know.
Play responsibly (18+)
Gambling is for adults (18+ or the legal age where you live) and should be entertainment, never a way to make money. If gambling stops being fun, free confidential help is available from BeGambleAware, GamCare and Gamblers Anonymous.