Endorphina Games and Licensing

The Maltese studio that signs the three chests holds its supplier licence from 1 August 2018 and entered the Portuguese and Spanish markets in August 2022. 3 Golden Chests is its September 2026 release, and a clear example of what it does: a compact grid, an unusual engine underneath and a published set of numbers you can actually check.

Licence, registration and markets#

The company behind the game is Endorphina Limited, registered in Malta under company number C77672. It holds the supplier licence MGA/B2B/404/2017, issued on 1 August 2018 for Type 1 Gaming Services, which is the category covering games of chance played against the house.

Beyond Malta, the studio declares a working relationship with a long list of regulators and testing bodies: the Malta Gaming Authority, Gaming Laboratories International, the Hellenic Gaming Commission, Anjouan Gaming, iGaming Ontario, MINCETUR in Peru, Spelinspektionen in Sweden, Spillemyndigheden in Denmark and ONJN in Romania, plus the AGLC in Alberta and ISO certification. In plain terms, that means the studio’s games are built to be submitted, tested and approved rather than published and forgotten.

For 3 Golden Chests specifically, game-level certification with the MGA is in progress, which is the normal path for a title released in September of the same year. The supplier licence above it is already in place, and that is the document that lets operators in those markets carry the catalogue at all.

What none of this tells you is whether the casino you are about to open is licensed where you live. That is a separate question with a simple answer: the footer of the site states its own licence, and our where to play page walks through the checks worth making before you deposit.

What else the studio signs#

3 Golden Chests is the reason most readers arrive here, and it is a good introduction to the studio’s habits: a clean frame, a mechanic explained in the rules panel, and prize values printed where you can see them. The game runs a 4x3 grid of twelve independent reels, pays by scatter, and hangs its whole bonus structure on three chests that activate at random.

Two titles sit next to it by name. Fortune Chests and Fortune Chests Dice are Endorphina’s own, and they share the chest theme, but they are separate releases with their own maths. The second of those exists because some markets play slot-style games in a dice format, which is a small illustration of how the studio adapts a catalogue to the places it is licensed in.

The catalogue behind it is wide and still growing on the record: the Brazilian certification programme alone moved from 76 games in December 2024 to more than 100 by October 2025. If you want to look at sideways, the practical path is to open a casino that carries the studio’s games and browse the lobby, rather than to work from a list. Our similar slots page covers the chest-themed neighbourhood specifically, including the look-alike titles from other studios that crowd the search results.

Regulated markets Endorphina has entered#

From Malta to Alberta. The studio’s market entries are dated and public, which makes them worth laying out plainly.

Two things stand out in that table. The first is pace: a Brazilian certification programme that moved from 76 games to more than a hundred inside ten months suggests a studio putting real effort into submission rather than treating it as a formality. The second is the Canadian layer. An Ontario supplier registration followed by an Alberta licence, counted by the studio as its fifty-ninth regulated jurisdiction, is a meaningful signal for readers in Canada, because it means the games are being reviewed by the same bodies that oversee the sites carrying them.

There is a practical reading of that table for a player, too. A supplier active in Portugal and Spain since August 2022, federally certified in Brazil and registered in Ontario and Alberta is a supplier whose catalogue turns up in lobbies aimed at very different regions, which is why 3 Golden Chests can be opened from a browser on a phone in one market and from a casino app in another. The build is the same in both: 4x3, twelve independent reels, 96.04% theoretical return, High volatility, four fixed tiers from MIN at 20x to ULTRA at 1,000x and an unfinished round held for 7 days.

The honest framing matters here. All of this describes the supplier, not the operator. A licensed studio’s game can appear in a lobby that is licensed somewhere quite different, which is why the footer check is the one that protects your account. Read the studio’s record as a reason to trust the build, and the casino’s licence as the thing that covers your money.

Why a supplier’s record is worth your time#

It is easy to skim past licensing sections, so here is the practical value in three lines. A supplier that holds a B2B licence has had its random number generation and its game rules tested by a laboratory rather than asserted in marketing. A supplier with entries in several regulated markets has submitted the same game to several independent reviews. And a supplier that publishes a free launcher for every title is one you can verify yourself before you deposit.

Applied to this game, that means the 96.04% theoretical return, the four fixed tiers from MIN at 20x to ULTRA at 1,000x and the Risk Game’s 84% average are not claims from a review site. They are figures the studio publishes in the rules panel of its own game, where anyone can open them, and the demo gives you that panel without spending anything.

The same holds for the parts a player feels rather than reads: 3 attempts in the Bonus Game, a counter that returns to the top with every new symbol, 12 positions to cover, and BONUS values that widen from 1x to 5x the total bet in the main game to 1x to 10x inside the round. Each of those sits in the rules panel of the same build the launcher serves, which is why the free demo and the money game behave in exactly the same way. Game-level certification with the MGA is in progress for this title, and the supplier licence above it is the one already in force.

How the studio publishes its games#

A game sheet, a graphics kit and a public launcher. Endorphina publishes a download-materials page for each title, carrying a game sheet plus a kit of backgrounds, logo, reel art, symbols and screens for operators and affiliates to use. That is the reason the images on this site show the game as the studio drew it, down to the logo and the reel art.

More useful for a player is the launcher. The studio hosts a public demo address for the game that runs it directly in the browser, on desktop, tablet and phone, and mints a fresh session each time it is opened. That is why the demo on this site loads in a single tap with a full play-money balance and no sign-up step: the path is the provider’s own. The demo page gives it a full screen.

There is a second practical benefit to a provider-hosted launcher. Because each load creates its own session, the address never goes stale and never carries an operator tag, so the demo you open here is the same neutral build a casino would embed. Nothing about it is a reduced version: the three chests activate the same way, the attempt counter behaves the same way, and the four fixed tiers sit on the same ladder. The only thing missing is a balance with your name on it, and the button at the top of this page solves that in one step.

The rules panel deserves a mention too, because it is where the detail actually lives. It lists every special symbol with its multiplier range, the four fixed jackpot tiers and the terms of the Risk Game, including the return by dealer card: 162% against a 2, an even 100% from a 6 through an 8, and 42% against an ace. Our RTP page reproduces that breakdown in full, and a studio that publishes the shape of its own gamble is one worth reading closely.

One more habit shapes how this game plays. Endorphina prints the prize on the face of each money symbol for the stake you have selected, rather than hiding values behind a static table. That is a design decision with a cost attached: it forces the studio to commit to legible artwork and to redraw values whenever you touch the bet rail. The payoff is that the grid explains itself, which is exactly why this title works on a phone as well as a desktop.

Put the pieces together and Endorphina’s profile is straightforward: a licensed supplier that publishes its numbers, submits its games and gives anyone a free path to try them. The game itself, in two screens, is on the slot hub , and when you want to play it for real, the button opens a table.