Endorphina Casinos

Endorphina is a slot-focused software provider based in Prague, Czech Republic, with a second office in Sliema, Malta. Founded in 2012, the studio has built a catalogue of over 200 HTML5 slot titles and supplies them to more than 5,000 casino operators across 54 jurisdictions. It is not a household name in the way that NetEnt or Microgaming are, but Endorphina has earned a loyal following among players who want clean design, straightforward mechanics, and reliable performance rather than spectacle.

Endorphina at a Glance

Founded2012
HeadquartersPrague, Czech Republic
Game TypeOnline Slots Only
Portfolio Size200+ Titles
Primary LicenceMalta Gaming Authority (MGA)
RNG CertificationiTech Labs & GLI
Jurisdictions54+
ISO CertificationISO 27001

Best Endorphina Casinos

The casinos below offer a selection of Endorphina slots to UK players. We compare each site on licensing, game availability, welcome offers, payment methods and overall usability, with links to our full casino reviews where available.

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Endorphina Company Background and History

Endorphina entered the iGaming market in 2012 with a single focus: slot development. Unlike many providers that branch into live casino, table games, or virtual sports, the studio has stuck to slots from the start. That narrow focus means resources go into refining slot design rather than spreading across multiple product lines.

The company picked up early recognition in 2015, winning Slots Guide's Slot of the Year award. By 2016, Endorphina had set up a dedicated Malta office - Endorphina Malta - to handle expansion into regulated European markets. The real turning point came in 2018 when the studio secured its Malta Gaming Authority B2B licence (MGA/B2B/404/2017), which opened up partnerships with operators across the EU and beyond.

Since then, the company has accumulated 19 industry awards and extended its reach into Latin America, Africa, and several European regulated markets. In 2025, Endorphina gained regulatory approval in Slovakia, adding another jurisdiction to its list. The studio also holds licences from ONJN (Romania), HGC (Greece), and Spelinspektionen (Sweden).

How Endorphina Works

Endorphina operates strictly as a B2B software supplier. It does not run any casinos or accept wagers directly from players. Casino operators integrate Endorphina's game portfolio into their platforms through licensing agreements.

From a player's perspective, the process is invisible. You visit a casino site, browse the slot library, and play an Endorphina title - the game loads in your browser with no download or plugin required. Behind the scenes, Endorphina handles game development, mathematical modelling, RNG certification, and regulatory compliance. The casino operator handles everything else: account management, deposits, withdrawals, and customer support.

All Endorphina slots are built in HTML5, so they run natively on desktop and mobile browsers. No Flash, no Java, no third-party software. This has been standard across the industry for years, but Endorphina committed to HTML5 early, which means its games load quickly and scale well across screen sizes. New casino sites are often among the first to introduce the latest Endorphina slot releases.

ℹ️Info

Endorphina is a game supplier, not a casino operator. If you encounter any issues while playing an Endorphina slot - deposits, withdrawals, account queries - your point of contact is the casino site itself, not Endorphina.

Licensing and Fairness

For UK players, licensing is one of the first things worth checking before playing any slot. The UK Gambling Commission requires that all casino sites accepting UK players hold a valid UKGC licence. Endorphina itself holds an MGA B2B licence, which authorises it to supply games to operators, but the studio does not prominently hold a separate UKGC supplier licence. In practice, Endorphina's games appear at UK-facing sites where the casino operator holds the relevant UKGC licence and has integrated Endorphina's content under its own regulatory umbrella.

On fairness, Endorphina's games are independently tested and certified by iTech Labs and Gaming Laboratories International (GLI). Both organisations verify that the RNG produces genuinely random outcomes and that the stated RTP percentages are mathematically accurate. The company also holds ISO 27001 certification, an international standard for information security management. That covers data handling and internal processes rather than game fairness specifically, but it signals an organisational rigour that smaller studios sometimes lack.

⚠️Warning

Always confirm that the casino site you are playing at holds a valid UKGC licence before depositing. A game supplier's own licence (such as Endorphina's MGA licence) does not replace the requirement for the operator to be UKGC-licensed. You can verify any operator's licence status on the Gambling Commission website.

Game Portfolio and Design Philosophy

Endorphina's catalogue spans over 200 slot titles across a broad range of themes: mythology, adventure, fantasy, retro fruit machines, and some more unusual concepts. Satoshi's Secret - built around a cryptocurrency and hacking aesthetic - is one of the more distinctive examples. The studio releases new titles regularly, though it does not match the output volume of the largest providers.

The defining characteristic of Endorphina's output is restraint. The studio favours clean visuals, smooth animations, and intuitive interfaces over complex layered mechanics. Most titles follow familiar structures: five reels, standard payline configurations, free spins, wilds, and scatters. There are no Megaways engines, no multi-level bonus buy systems, no cascading reel mechanics. That is a deliberate choice.

If you find modern high-volatility slots exhausting - every spin a cascade of animations, multipliers, and feature decisions - Endorphina can feel like a relief. The trade-off is real, though. Players chasing boundary-pushing innovation or huge max-win potential will find the catalogue conservative. If you enjoy the feature-heavy style of providers like Play'n GO, Endorphina will feel noticeably more restrained.

The Bonus Pop Feature

One mechanic worth flagging is Bonus Pop, available on selected titles. It lets players instantly trigger the free spins round and choose their own expanding symbol, bypassing the usual scatter-collection process. This is not a bonus buy in the traditional sense - you are not paying a premium to enter a feature. It is an alternative entry point that gives you more control over when and how the bonus round starts.

It works well in practice. Players who dislike waiting for scatters to land can jump straight in; those who prefer organic gameplay can ignore it entirely. It is one of the few areas where Endorphina has done something genuinely different rather than following established conventions.

Cryptocurrency Compatibility

Endorphina was among the earlier slot providers to embrace cryptocurrency themes. Satoshi's Secret was released well before crypto gaming went mainstream, pairing a hacking and cryptocurrency aesthetic with standard slot mechanics. Beyond theming, several Endorphina titles are compatible with cryptocurrency-accepting casino platforms, though the actual deposit and withdrawal process is always handled by the operator, not the game.

For UK players, this is largely a niche consideration. Most UKGC-licensed sites operate in GBP and do not accept cryptocurrency deposits. Players using offshore platforms that support crypto may encounter Endorphina titles in those environments.

Mobile Experience

Because the entire catalogue is HTML5, Endorphina's games are designed to work across devices. They scale to smartphone and tablet screens, touch controls replace mouse interactions, loading times are generally quick, and visual quality holds up on smaller displays.

That said, not every title in the catalogue appears equally polished on mobile. Older games may not have received the same level of mobile refinement as newer releases - a common issue for any provider with a large back-catalogue. For the most part, though, performance is decent across the range.

How Endorphina Compares to Larger Providers

Endorphina sits in the mid-tier of iGaming software providers. Well-established, widely distributed, respected - but without the recognition or market share of the biggest names. Here is how it stacks up in broad terms:

  • Portfolio size: Over 200 titles is respectable, but well below providers like NetEnt or Microgaming, whose catalogues run into the hundreds or thousands when you include legacy and branded content.
  • Game variety: Endorphina makes slots and nothing else. Providers that also cover live casino, table games, or game shows - such as Evolution Gaming - naturally offer more ground.
  • RTP range: Most Endorphina slots sit around 96%, which is in line with the industry average. Some competitors offer titles above 97%, but Endorphina's figures are reasonable.
  • Innovation: Outside of Bonus Pop, Endorphina does not push mechanical boundaries. Studios like Play'n GO experiment more aggressively with new formats and volatility models.
  • Availability: With 54+ jurisdictions and 5,000+ operator partnerships, the global reach is strong - though UK market presence is less prominent than some European-focused competitors.

None of this makes Endorphina a poor option. It simply occupies a different space. Players who want polished, no-nonsense slot design over complex mechanics will find plenty to suit them. If you want to see how the studio's style plays out in practice, 2016 Gladiators is a good example of its approach to theme and structure.

Strengths and Limitations

What Endorphina Does Well

  • Consistent quality: Games are well-built, visually clean, and run reliably. There is a consistency to Endorphina's output that larger studios sometimes lose when prioritising volume.
  • Accessibility: Straightforward mechanics make these slots easy to pick up for newer players, or anyone who finds modern feature-heavy titles hard going.
  • Certification and compliance: MGA licence, iTech Labs and GLI certification, and ISO 27001 accreditation all point to a studio that takes its regulatory and security obligations seriously.
  • Demo availability: Most Endorphina titles offer a free-play demo mode, letting you try games without wagering real money - useful for getting a feel for volatility and mechanics before committing funds.

Where It Falls Short

  • Slots only: If you want a single provider covering slots, live casino, and table games, Endorphina cannot help. It is exclusively a slot studio.
  • Conservative mechanics: Players who want high-volatility, feature-packed slots with huge max-win multipliers may find Endorphina's output too tame.
  • UK market presence: Endorphina's games are available at some UK-facing sites, but the provider does not have the same visibility or operator penetration in the UK as it does in other European markets.
  • Legacy mobile issues: A small number of older titles may not perform as well on mobile as the newer releases.

💡Tip

Most Endorphina slots offer a free demo mode. If you have not played an Endorphina title before, try a demo first to see whether the style and pace suit you before playing with real money.

Responsible Gambling

Endorphina titles at UKGC-licensed sites are subject to the Gambling Commission's responsible gambling requirements. These include mandatory deposit limits, reality checks, self-exclusion options, and access to support tools.

If your gambling is becoming a problem, you can self-exclude through GAMSTOP, which covers all UKGC-licensed operators. For free, confidential advice, GambleAware is a good starting point.

Slots are games of chance. RTP percentages describe long-term mathematical averages - they say nothing about what will happen in any given session. Set a budget before you play and stick to it.

Endorphina Slots FAQ

What type of games does Endorphina make?

Endorphina develops online slot games exclusively. The studio does not produce live casino games, table games, virtual sports, or any other game type. Its portfolio includes over 200 HTML5 video slots covering themes from mythology and adventure to retro fruit machines.

Is Endorphina licensed and regulated?

Endorphina holds a Malta Gaming Authority B2B licence (MGA/B2B/404/2017) along with licences from regulators in Romania, Greece, and Sweden. Its games are independently certified by iTech Labs and Gaming Laboratories International (GLI) for RNG fairness. The company also holds ISO 27001 certification for information security management.

Can I play Endorphina slots on my mobile?

Yes. Endorphina's games are built in HTML5 and designed to run directly in mobile and desktop browsers without requiring any downloads. The majority of the catalogue is fully mobile-optimised, though a small number of older titles may not perform as smoothly on smaller screens.

What is the typical RTP of Endorphina slots?

Most Endorphina slots have an RTP in the range of 95% to 96.5%, which is in line with the industry average. Exact RTP figures can vary by casino operator, so it is worth checking the game information panel before playing.

What is the Bonus Pop feature?

Bonus Pop is a mechanic available on selected Endorphina slots that lets players trigger the free spins round instantly and choose their own expanding symbol. It provides an alternative to waiting for scatter symbols to land naturally during base gameplay.

Are Endorphina slots available at UK casino sites?

Endorphina slots are available at a number of casino sites that accept UK players. The provider's games are integrated into platforms operated by UKGC-licensed companies, though Endorphina's UK presence is smaller than that of some larger European providers.

Can I try Endorphina slots for free before playing with real money?

Yes. Most Endorphina titles offer a free demo mode that lets you play without wagering real money. This is a useful way to test the gameplay, volatility, and features of a slot before committing any funds.

How does Endorphina compare to bigger slot providers?

Endorphina's catalogue of 200+ titles is smaller than the largest providers such as NetEnt or Microgaming, and its mechanics tend to be more conservative. However, the studio is well-regarded for consistent visual quality, smooth performance, and accessible gameplay. It suits players who prefer straightforward slots over feature-heavy, high-volatility designs.

 

 

Casino sites with online slots powered by Endorphina software

Playzee

Playzee

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Playzee Casino launched in 2018, bringing with it a playful scientist mascot (Prof Zeegmund) and a seriously slick gaming experience. Operated by White Hat Gaming Ltd, it’s fully licensed by the UK Gambling Commission (account no. 52894) and the Malta Gaming Authority, so UK players can rest e... Read Playzee review

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Spicy Jackpots Casino

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Spicy Jackpots Casino has been around since 2021 and is run by Spicyjackpots LTD under a Curaçao licence. That tells you two things right away: this online casino is open to a broad range of countries, and it is not operating under the tighter rules of a UKGC or MGA site. It is worth reading ... Read Spicy Jackpots Casino review

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MrPunter

MrPunter

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With over 80 software providers packed into a single lobby, MrPunter is clearly trying to make a statement about the size of its game library. Operated by BMB Media Ltd and launched in April 2026, this is a casino that leans heavily into variety, offering slots, live dealer tables, crypto payments, ... Read MrPunter review

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Mega Riches Casino

Mega Riches Casino

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Experience over 8,000 games at Mega Riches Casino, operated by Videoslots Ltd. Enjoy top slots, live dealer games, and a welcome bonus. Fully licensed by the UKGC.

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Mega Riches Casino, launched in August 2024, is the latest online casino from Videoslots Ltd, the company behind popular sites like Videoslots and Mr Vegas. The UK Gambling Commission fully licenses the site, ensuring a safe and regulated gaming environment for UK players. The casino is built for p... Read Mega Riches Casino review

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LiveScore Bet

LiveScore Bet

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If you know LiveScore, you probably know it from checking football scores on your phone. The brand has been part of the sports world for years, and LiveScore Bet is its gambling operation. The site is operated by LiveScore Betting & Gaming (Gibraltar) Limited alongside Kambi, a well-regarded spo... Read LiveScore Bet review

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Videoslots

Videoslots

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Play over 12,000 games at Videoslots - the world’s largest online casino. Enjoy slots, table games, and live casino with fast withdrawals and no-nonsense bonuses.

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Launched in 2011 and operated by Videoslots Limited, this casino isn’t trying to mislead anyone with a flashy name. It’s called Videoslots, and surprise - it has slots. Lots of them. In fact, with over 12,000 games on offer, it proudly claims the title of the world’s largest online... Read Videoslots review

T&C's: You will receive 11 welcome spins in a random game upon First Deposit. You have 7 days to activate the bonus, once activated welcome spins must be used within 24 hours. A First deposit is required to play these spins. Welcome Spins are free from any wagering requirement. No maximum withdrawal limits. You must be 18 or over to play and 21 in countries where that is the minimum age by law. Play Responsibly.

Winlandia Casino

Winlandia Casino

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Winlandia Casino offers UK players 6,000+ games, live dealer tables, and regular tournaments. Fast withdrawals.

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Originally launched as Finlandia Casino back in 2014, Winlandia has gone full makeover mode for the UK and other regulated markets. The platform launched in the UK market in 2024. Now operated by Skill On Net Ltd, the same crew behind PlayOJO, Mega Casino, and Queen Vegas, this rebooted site is full... Read Winlandia Casino review

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Duelz Casino

Duelz Casino

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Duelz Casino adds a twist to online play with gamified battles, instant payouts, and thousands of top slots. Claim your welcome bonus.

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Duelz Casino is a casino platform that launched in 2018 and is operated by SuprPlay Limited Casinos. The casino has obtained licenses from various gambling authorities, such as the Swedish Gambling Authority, the UK Gambling Commission (license number 48695), and the Malta Gaming Authority. Duelz... Read Duelz Casino review

T&C's: 18+. New players. Min deposit £25. Up to 140 Free Spins (20/day for 7 consecutive days on selected games). Manually claimed daily or expire at midnight with no rollover. Free spin value £0.10. Max winnings £100/day as bonus funds with 10x wagering requirement to be completed within 7 days. Game restrictions apply. Play Responsibly! www.begambleaware.org Full T&Cs apply.

Ocean Breeze Casino

Ocean Breeze Casino

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If the name has you picturing a breezy slots retreat, Ocean Breeze Casino at least holds up on the game library side. Operated by OCEANBREEZE TECH LIMITED and licensed in Curacao, the site launched in March 2023 and takes deposits in British Pounds alongside several other currencies. That Curacao li... Read Ocean Breeze Casino review

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Big Wins Casino

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Big Wins Casino launched in 2022 and is operated by BigWins Ltd. It runs under a Curacao licence, which UK players need to know upfront: this is not a UKGC-licensed casino. That does not make it unusable, but you do not get the same regulatory protections you would have on a UK Gambling Commission... Read Big Wins Casino review

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Mr Slot Casino

Mr Slot Casino

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Powered by Progress Play, Mr Slot Casino offers some of the latest slot games by the big industry names such as NetEnt, NextGen and Microgaming. Brand new slots released regularly and favourites

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Progress Play launched Mr Slot Casino in 2016. It holds dual licences from the UK Gambling Commission and the Malta Gaming Authority, which is a genuine plus for UK players who want proper regulatory oversight. The site runs on Progress Play's platform, shared across dozens of casino brands, so ... Read Mr Slot Casino review

T&C's: New players only. Wagering from real balance first. 10X wagering the bonus money within 30 days. 10x wagering the winnings from the free spins within 7 days. Contribution varies per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days. Free spins and any winnings from the free spins are valid for 7 days from receipt. Max conversion: 1 time the bonus amount or from free spins: £4. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms Apply

Pornhub Casino

Pornhub Casino

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Pornhub Casino has real porn star live dealers, strip poker and X-rated games throughout. Games are provided by Playson and Betsoft. 3D slots, casino games, progressives and fast payouts.

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Pornhub Casino launched in 2016 with a Curacao license. Otherwise known as PH Casino, we can't think why! This one is definitely NSFW. If you think about it, it's a surprise that it's taken this long to happen. Pornography and online casinos are two of the biggest markets on the e... Read Pornhub Casino review

Casobet

Casobet

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Casobet launched in 2021 and is run by Cybercorp LTD. It holds a Curacao licence, not a UK Gambling Commission licence, and that is the first thing UK players need to weigh up before getting drawn in by the long payment menu or the game lobby. The main draw is choice. Casobet pairs a sizeable slots... Read Casobet review

T&C's: Offer available to all new players. Minimum deposit: €25 / £25 / $25. Bonus funds must be wagered 25x before withdrawal. Bonus validity: 30 days from activation. General casino bonus rules apply.

Becky Mosley
Founder & Editor-in-Chief at Slotfruit

Rebecca (Becky) Mosley has been at the heart of the UK online gambling industry since 2008 - making her one of the most experienced voices in the space. She founded Take Marketing Limited and built SlotFruit.co.uk into one of the longest-running independent casino comparison sites in the country.

As editor-in-chief, Becky brings a genuine player-first perspective to everything on the site. She personally oversees every casino review and slot guide, making sure readers get straight-talking, honest information rather than marketing fluff. Her approach has always been the same: transparency, fair bonus terms, and responsible gambling above all else.

Over 17 years in the industry, Becky has built deep expertise across UK Gambling Commission licensing, slot game mechanics, bonus structures, and the constantly evolving regulatory landscape. She works directly with operators and software providers to keep every listing accurate and up to date.

Becky is a Companies House registered director (Take Marketing Limited, company no. 07619813) and is based in Lincolnshire, England.