Prague Slot Studio Since 2012

Endorphina

A Prague-founded iGaming software studio delivering 200+ certified HTML5 slot games to operators worldwide, backed by MGA and GLI certification, 96%+ RTP, and dedicated B2B support since 2012.

Founded 2012, Prague, Czech Republic
Game Portfolio 200+ HTML5 Slot Titles
Average RTP 96%+ Across All Titles
Certifications MGA Licensed · GLI Certified · ONJN
Technology HTML5 · Mobile-First · Crypto-Compatible

Prague Roots, Global Slot Reach

Endorphina is a veteran iGaming software studio with roots in Prague, Czech Republic, founded in January 2012. Over more than a decade, the studio has built a reputation as a prolific and trusted B2B slot developer, releasing dozens of game titles per year and growing its portfolio to more than 200 HTML5 slot games distributed across licensed casino operators worldwide. Every release reflects a deep commitment to engaging mathematics, distinctive art direction, and reliable backend stability.

The studio's catalog covers a diverse range of themes: Egyptian mythology, cryptocurrency culture, classic fruit machines, horror, pop culture, and seasonal specials. Standout titles including Satoshi's Secret, Hell Hot 100, Books & Bulls, and Joker Stoker have earned loyal followings among players seeking variety, strong bonus mechanics, and competitive RTP figures averaging 96% or higher. All games are thoroughly tested by Gaming Laboratories International (GLI), ensuring certified fairness and consistent mathematical behavior across every deployment.

OHS Gaming operators gain direct B2B access to Endorphina's full slot library through a single API integration. Whether launching a white-label casino platform or expanding content depth on an existing iGaming operation, Endorphina's MGA-licensed titles slot in with minimal overhead and proven player retention performance.

View all 146+ Game Providers

Core Provider Values

  • Certified Fairness

    All titles tested by GLI and certified under MGA, ONJN, and ISO standards for consistent RNG behavior.

  • Global Reach

    Games distributed to operators across Europe, Asia, and Latin America with multi-language and multi-currency support.

  • Competitive RTP

    Portfolio-wide average of 96%+ RTP ensures strong player retention and return metrics for operators.

  • Prolific Release Cadence

    Dozens of new slot titles released every year, keeping operator content libraries fresh and player interest high.

Top Endorphina Slots

Six flagship titles from Endorphina's 200+ game portfolio, each GLI-certified and built for seamless operator integration via OHS Gaming.

Books and Bulls by Endorphina

Books & Bulls

A Spanish-themed adventure combining the beloved Book-style mechanic with bull-run excitement. Expanding special symbols trigger volatile free spins with huge win potential.

Book Mechanic
Satoshi's Secret by Endorphina

Satoshi's Secret

Endorphina's iconic cryptocurrency-themed slot celebrating Bitcoin culture. Wild substitutions, scatter-triggered free games, and bonus rounds make this a player favorite.

Crypto Theme
Hell Hot 100 by Endorphina

Hell Hot 100

A blazing fruit slot played across 100 fixed paylines. Classic symbols, a scorching aesthetic, and a straightforward high-frequency gameplay loop keep sessions intense.

Fruit Classic
Shaman by Endorphina

Shaman

A 5-reel, 10-payline slot steeped in tribal mysticism. Shaman features expanding wilds, a free spins round with multipliers, and vivid hand-drawn artwork that resonates with players across regulated markets.

Mystical
Joker Stoker by Endorphina

Joker Stoker

A steampunk-infused joker slot combining retro charm with modern mechanics. Expanding wilds and a cascading bonus round reward persistent play with escalating multipliers.

Steampunk
Lucky Haunter by Endorphina

Lucky Haunter

A haunted fruit machine with a quirky twist. The bonus mini-game sends the ghost on a bar hunt for extra prizes, adding a layer of interactivity to a classic reel format.

Bonus Game

Key Provider Features

Everything iGaming operators need to deploy and scale a premium Endorphina slot offering through the OHS Gaming platform.

GLI Testing and Multi-Jurisdiction Licensing

Every Endorphina title is tested by Gaming Laboratories International (GLI) and carries active MGA, ONJN, and ISO certifications, satisfying compliance requirements in the most regulated iGaming markets globally.

GLI Certified

Cryptocurrency and Fiat Compatibility

With flagship titles like Satoshi's Secret designed around Bitcoin culture, Endorphina's games are built to operate within crypto-native environments alongside traditional fiat casino setups, providing maximum operator flexibility.

Crypto-Ready

HTML5 Mobile-First Architecture

All 200+ Endorphina slots are built on HTML5 and fully optimized for mobile play without any client-side downloads or plugins. Touch-native controls and adaptive viewport rendering deliver consistent quality on every device and screen size.

HTML5 Native

Dedicated B2B Marketing and Support

Endorphina provides operators with high-end technical integration support, bespoke marketing materials, promotional calendars, and around-the-clock customer service, ensuring a smooth launch and ongoing operational success.

Full B2B Support

Core Game Mechanics

The engineering and design foundations powering every Endorphina slot title available on the OHS Gaming iGaming platform.

Book-Style Free Spin Mechanic

Endorphina popularized the Book mechanic in which a single expanding special symbol is randomly selected before each free spin round. When the symbol appears on the reels, it expands to cover the full reel column and pays in any position, creating disproportionately large win events relative to base game frequency.

  • Random special symbol selection per round
  • Full-reel expansion on trigger
  • Pays regardless of payline position

Configurable RTP and Volatility

Endorphina titles support multiple configurable RTP levels per game, allowing operators to select the mathematical profile that best fits their player base and regulatory environment. Volatility settings can also be adjusted, enabling operators to tune both player retention patterns and gross gaming revenue margins per title.

  • Multiple RTP levels per title
  • Operator-selectable volatility profiles
  • Jurisdiction-specific math compliance

Wild and Bonus Round Variety

Across 200+ titles, Endorphina deploys a wide arsenal of bonus mechanics: sticky wilds, expanding wilds, multiplier wilds, interactive mini-games, pick-em bonus rounds, and cascading symbol engines. This variety prevents player fatigue and lets operators serve multiple audience segments from a single catalogue integration.

  • Sticky, expanding, and multiplier wilds
  • Interactive pick-em bonus rounds
  • Cascading reel engines on select titles
200+
Slot Game Titles
2012
Year Founded
96%+
Average RTP
GLI
Certified

Ready to Launch Endorphina on Your Platform?

OHS Gaming delivers full operator access to Endorphina's 200+ GLI-certified slot catalogue, including MGA-licensed titles, configurable RTP, HTML5 mobile-ready delivery, and dedicated B2B support. Get in touch with our team today.