Endorphina
Endorphina is a Prague-founded online slot studio operating since 2012, with over 200 GLI-tested titles, an average RTP near 96%, and an MGA (Malta) games-supplier licence.
Endorphina's slot-only catalogue, GLI and iTech Labs testing and Malta-based licensing suit players who want classic and adventure-themed reels rather than live tables or jackpots.
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Endorphina Casinos — Games, Fairness and Where to Play
Endorphina is an online slot studio founded in 2012 in Prague, Czech Republic, and now registered as a B2B games supplier out of Malta. The studio's catalogue counts more than 200 titles, all tested by GLI, with a published average theoretical return to player of 96% across releases such as 100 Zombies and 2020 Hit Slot.
Who Is Endorphina
Endorphina was founded in 2012 in Prague, Czech Republic, according to the studio's own website, and its current legal registration sits in Sliema, Malta. The company holds a Type 1 gaming services licence from the Malta Gaming Authority (MGA/B2B/404/2017), alongside supplier registrations with Romania's ONJN, the Hellenic Gaming Commission in Greece and Spelinspektionen in Sweden.
Endorphina's regulatory footprint kept expanding into 2026: the studio holds a Gaming-Related Vendor Licence, Tier II, from the UAE's General Commercial Gaming Regulatory Authority, and canadiangamingbusiness.com reported on April 21, 2026 that Endorphina now operates across more than 50 regulated jurisdictions with over 6,000 operator partnerships. A separate registration as a Gaming-Related Supplier with Ontario's AGCO took effect on April 16, 2026, according to canadiangamingbusiness.com.
Endorphina Slots and Signature Mechanics
Endorphina builds exclusively online slot games — the studio's portfolio contains no table games, no live dealer studio and no jackpot network. All titles run on HTML5, which keeps the same game logic on desktop and mobile browsers without a separate app.
Four catalogue titles show the spread of RTP and volatility inside Endorphina's slot library:
| Game | RTP | Volatility | Reels / Paylines |
|---|---|---|---|
| 100 Zombies | 96% | Low | 5 / 100 |
| 100 Zombies Dice | 96.03% | Low | 5 / 100 |
| 2016 Gladiators | 96% | Medium | 5 / 21 |
| 2020 Hit Slot | 96% | Low | 5 / 100 |
Endorphina's wider catalogue also extends into book-themed adventure reels and animal-themed titles such as Buffalo 50, broadening the studio's classic slot lineup beyond its numbered series.
Endorphina RTP, Volatility and Fairness
Endorphina's own published average RTP sits at 96% across its slot catalogue, according to endorphina.com, matching the return shown on individual titles such as 100 Zombies (96%) and 100 Zombies Dice (96.03%) listed above. RTP is a theoretical figure calculated over a very large number of simulated spins, not a promise for any single session, and volatility describes how wins are distributed rather than how likely a win is overall — 2016 Gladiators carries medium volatility against the low-volatility profile of the other three titles in the table.
GLI (Gaming Laboratories International) tests every Endorphina game before release, and the studio also lists iTech Labs among its independent auditors of RNG fairness. Endorphina holds ISO/IEC 27001:2022 certification for its information security management system, according to endorphina.com/about — a standard covering how player and game data is protected, separate from the game math itself.
Endorphina's Malta Gaming Authority licence (MGA/B2B/404/2017) is a Type 1 gaming services licence — the category MGA uses specifically for suppliers of games software, not for gambling operators.
Where to Play Endorphina Games
Endorphina distributes its slots to licensed casinos rather than operating any site directly, so availability depends on which studios a given operator has integrated. The casino selection listed above this article gathers licensed operators that carry Endorphina slots; per our records, the provider's titles appear at casinos such as RioBet, CatCasino and Vavada Casino among several hundred entries in our catalog. Browsing the wider licensed casinos hub is a reasonable starting point for confirming which operators hold a valid licence alongside their Endorphina game library.
Endorphina's slots run on the same HTML5 codebase on desktop and mobile browsers, so compatibility depends more on how an operator builds its lobby than on the game engine itself — the mobile casinos hub covers operators tested specifically on phone and tablet browsers. Players who fund accounts through an e-wallet should also check payment coverage separately, since Endorphina's game access does not guarantee identical banking options across every operator; the Neteller casinos hub lists operators supporting that method.
- Game availability — confirm the specific casino lobby actually lists Endorphina among its providers before signing up.
- Operator licence — check the casino's own licence separately from Endorphina's MGA and GCGRA credentials, since the two are not the same thing.
- Region restrictions — Endorphina serves markets across Europe, Latin America and the UAE, but individual casinos still apply their own country blocks.
- Demo access — check whether the casino offers a free-play version of the slot before wagering real funds.
Common Misconceptions About Endorphina Slots
- Hot or cold slots — Endorphina's random number generator has no memory of previous spins; a title such as 2020 Hit Slot cannot be "due" for a win or "cooling down" after one, regardless of recent results.
- RTP as a session guarantee — a published RTP of 96% describes the return calculated over a very large number of spins, not the outcome of any single session or day of play.
- One volatility for the whole catalogue — Endorphina's own titles range from the low-volatility profile of 100 Zombies to the medium-volatility profile of 2016 Gladiators, so treating every release as equally high-risk is not accurate.
- Identical experience on every casino — game math stays the same, but wagering rules, deposit limits and demo access are set by the operator, not by Endorphina.
Verdict on Endorphina
"Endorphina's value is narrow by design — a slot-only catalogue tested by GLI and licensed through Malta, built for players who want straightforward reels rather than a full casino game suite."
Endorphina suits players who specifically want classic and adventure-themed slot mechanics with a verified average RTP near 96%, rather than a mixed portfolio that also covers live tables or jackpot networks. Players who need live dealer games or table variants alongside slots will need a second provider in the same casino lobby, since Endorphina's catalogue does not include either category. Check the exact game list and licence of the casino from the selection above rather than assuming every Endorphina-carrying operator offers identical terms.
Gambling is entertainment, not a way to make money or fix finances. Set deposit and time limits, take regular breaks, and use self-exclusion tools if play stops feeling like fun. Licensed operators provide these tools — using them is a sign of control, not weakness. Learn more on Responsible Gambling →
Update history
- Aug 21, 2026 — Added studio licensing detail, four-game RTP/volatility table and where-to-play guidance
Endorphina – FAQ
Which casinos offer Endorphina slots?
Per our records, Endorphina slots are available at several hundred licensed casinos in our catalog, including RioBet, CatCasino and Vavada Casino among others carrying the provider's titles.
What RTP do Endorphina slots typically return?
Endorphina's slot catalogue averages around 96% RTP, according to endorphina.com, with individual titles such as 100 Zombies at 96% and 100 Zombies Dice at 96.03%.
Who audits Endorphina games for fairness?
GLI (Gaming Laboratories International) tests every Endorphina game before release, and the studio also lists iTech Labs among its independent auditors of RNG fairness.
Does Endorphina produce live dealer or table games?
No. Endorphina's portfolio is exclusively online slots, with no table games, live dealer studio or jackpot network in its catalogue.
Where is Endorphina licensed?
Endorphina holds a Type 1 gaming services licence from the Malta Gaming Authority (MGA/B2B/404/2017), plus supplier registrations including Romania's ONJN, Greece's Hellenic Gaming Commission, Sweden's Spelinspektionen and a Tier II vendor licence from the UAE's GCGRA.
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