Three parties, three different jobs
| Who | Decides | Does not decide |
|---|---|---|
| The studio | the game, its maths, its RTP versions | which casinos carry it |
| The aggregator | which studios a casino can reach through one integration | the maths inside any game |
| The casino | which of the available titles to show, and which RTP version where offered | the game itself |
Why two casinos show the same games in the same order
Because both reach those studios through the same integration layer. Catalogue breadth is set by that layer far more than by any casino's ambition, which is the whole explanation for sites that look nothing alike carrying identical lobbies. It also means a site with a thousand titles from sixty studios is broader than one with five thousand from twenty.
The part that actually affects your odds
Some studios ship a title in more than one RTP version and the operator picks which runs. So the same slot can pay back measurably differently at two sites. It is one of very few cases where the choice of casino touches the mathematics of a game, and it is checkable in ten seconds: open the game's info panel and read the figure there, not in an article quoting a general number.
What this means when you compare casinos
- Count studios rather than titles — it is the better proxy for breadth.
- Check the RTP inside the game, not on a review page.
- Treat 'exclusive' games with mild scepticism; most are a skin on a familiar engine.
- Live tables come from a handful of studios, so the same table often appears on sites that look entirely different.
Across the five we cover
CasinoPurple reaches the most studios, which is why its catalogue is the largest. ZeSlots deliberately carries fewer, and was still the site we opened most often. YourWin24 carries the broadest live floor, which is a studio question more than a casino one.
Frequently asked questions
Does the casino make the games?
Almost never. Studios build them, an aggregation layer connects them, and the casino chooses which to display.
Why do different casinos have identical lobbies?
Because they reach the same studios through the same integration layer, so catalogue breadth is set there rather than by the casino.
Can the same slot pay differently at two casinos?
Yes, where a studio ships multiple RTP versions and the operator picks one. Check the figure in the game's info panel.
Is studio count better than game count?
Yes, as a proxy for breadth. A thousand titles from sixty studios beats five thousand from twenty.