1 King Slot Providers: The Full Studio Breakdown
1King's slot library draws from close to 60 confirmed studios. That's not a small set of exclusive partners. This page breaks that provider list down by category. It also explains why a wide studio spread matters. Basic vocabulary — RTP, volatility, and common slot types — gets covered too, to make browsing the lobby easier.
Every term here gets explained on first use, so no prior slots experience is assumed. Nothing on this page covers bonus terms or wagering; our bonus breakdown handles that side in full.
The Provider Lineup, Grouped by Tier
1King's confirmed studio list spans long-established international names, solid mid-size developers, and smaller niche specialists. Most players won't recognise every name on sight. We've grouped the full confirmed list into three rough tiers below. That grouping is based on how widely each studio is recognised across the casino industry. It isn't based on any ranking 1King itself publishes.
| Tier | Providers |
|---|---|
| Established international | Pragmatic Play, NetEnt, Yggdrasil, Betsoft, Red Tiger, Hacksaw Gaming, Habanero, Playson, Relax, OneTouch, Nolimit City, Spribe |
| Mid-size studios | EGT Digital, Amusnet, Endorphina, BGaming, Evoplay, Spinomenal, Amatic, Fugaso, KA Gaming, TomHorn, Swintt, Oryx Gaming, Spadegaming, Golden Race, Gamomat |
| Niche and specialist | 3 Oaks, TaDa, FAZI, Amigo, True Labs, DreamPlay, 1Spin4Win, SmartSoft, Fired Up Games, RubyPlay, Tap King, BetGames, 5MenGames, Netgame, Mrslotty, Inbet, Mancala, Belatra, BFgames, Thunderspin, Mascot, Gamzix, GameArt, WorldMatch, DLV, Barbarabang, Elbet, F1X2, Dragon Gaming, Netgaming, TopSpin, Champion, Stakelogic, Mechanico, GameBeat, Golden Hero Group, Givme |
That adds up to roughly 60 confirmed studios in total, a genuinely broad spread for one platform. No single developer dominates the lobby here, which matters for anyone who likes exploring different studios rather than sticking to one house style.
NetEnt's Presence: A Real Differentiator
NetEnt's presence on 1King's confirmed provider list deserves a specific mention. Some GEO-restricted casino platforms drop this studio from their catalogue entirely. That often comes down to regional licensing arrangements tied to NetEnt's own distribution deals. Seeing it confirmed here is worth flagging for anyone comparing 1King against a competitor that skips it.
NetEnt built its reputation on titles that helped define the modern video slot format. Its continued presence in 1 King's lobby sits alongside Pragmatic Play. Together, they're the two most recognisable names on the list.
Why a Wide Provider Spread Matters
A long provider list isn't just a number worth advertising. It usually means more variety in math models, bonus mechanics, and visual style across the lobby. Established studios like Pragmatic Play or NetEnt tend to set the pace for mainstream slot design. That's the kind of design most players recognise instantly. Smaller studios such as Gamzix or Mechanico, by contrast, often experiment with less conventional formats.
Having both ends of that range in one lobby gives players more room to find a game that suits their taste. Nobody gets funnelled toward a single exclusive partner's output. A mid-size studio like Endorphina or BGaming often sits between those two extremes. These studios tend to offer steady, well-tested mechanics without the marketing budget of the biggest names.
Browsing and Filtering the Lobby
With a catalogue this size, scrolling through every title isn't practical. 1King's lobby is built around filtering rather than one long static list. Two approaches cover most of what a player needs:
- Filter by provider. This narrows the lobby to a single studio's full catalogue — useful once you already favour, say, Hacksaw Gaming or Spinomenal titles.
- Browse by category. This groups games by type, such as new arrivals, popular titles, or jackpot games, rather than by studio.
The exact number of titles live in the lobby at any moment is best checked directly on the platform. Studios add and rotate releases on their own schedule. A filtered browse always reflects the current state of the library more accurately than a fixed number could.
Types of Slot Games in the Library
Slot libraries across the casino industry, 1King's included, tend to split into a handful of broad categories. Knowing this vocabulary in advance makes the lobby faster to navigate once you're filtering by type:
| Type | What it means |
|---|---|
| Classic slots | Simple reel layouts, often three reels, styled closer to a traditional fruit-machine format |
| Video slots | Five-reel or larger games with bonus rounds and a themed storyline running through the design |
| Jackpot slots | A prize pool that grows as players wager, paid out to whichever player triggers the jackpot condition |
| Megaways-style | A variable symbol count on each reel per spin, which changes the total number of ways to win |
Which of these categories dominates the lobby on any given day depends on what individual studios have released recently. 1King's own category filters are the fastest way to see the current split. This table works better as a vocabulary guide than as a fixed inventory of what's live today.
What RTP Means
RTP stands for "return to player." It's a theoretical percentage of everything wagered on a slot, designed to be paid back over a very large number of spins. Take a game with a 96% RTP as an example. It's built to return 96 units for every 100 wagered, averaged across millions of spins rather than any single session. It's a long-run statistic, not a promise about your next spin.
The exact RTP figure is set per title by the studio that built it. It varies from one game to the next, even within the same provider's catalogue. Check the individual game's own info screen for its specific number, rather than assuming one figure applies platform-wide.
What Volatility Means
Volatility, sometimes called variance, describes how a slot pays out over time, separately from RTP. A low-volatility game tends to produce smaller wins more often. That keeps a balance ticking along steadily through a session. A high-volatility game pays out less often. Individual wins can be considerably larger when they land, though.
Neither style is objectively better. It comes down to whether you'd rather have frequent small returns or fewer, bigger swings. Most studios list a title's volatility rating directly on its info screen, usually right next to the RTP figure.
1King Slots and Wagering Contribution
Slot play contributes 100% of your stake toward clearing a bonus, by default, across the platform. That default makes slots the fastest, most predictable way through a wagering requirement. Full detail on how that contribution rate compares to table games and live dealer titles lives on our bonus breakdown page.
Provider choice doesn't change that contribution rate. A spin on a Pragmatic Play title and a spin on a smaller niche studio's game count the same way. That's true as long as both are slots.
How the Provider Mix Fits Into the Wider Casino
Slots make up the largest single part of 1King's casino product. A smaller, Turkish-themed live dealer floor sits alongside it, covered elsewhere on this site. The provider spread on this page is specifically about the slot side, not the live tables.
One quick note for context: the same 1King login also opens a full sportsbook. It runs entirely separately from the casino and carries its own welcome offer. This page stays focused on slot providers and doesn't go further into that side.
Getting the Most Out of the Provider Filter
If you already know which studio's games you enjoy, the provider filter is the most direct route to that catalogue. Typing a name like Yggdrasil or Endorphina into the filter takes you straight to that studio's full 1King selection. Everything else in the lobby gets skipped.
If you're still exploring, mixing established names with a few niche studios is a reasonable way to get a feel for the range on offer. Try one title from each tier in the table above: established, mid-size, and niche. That gives a fair sense of how different the house styles actually are before you settle on favourites.
Frequently Asked Questions
How many slot providers does 1King work with?
Around 60 confirmed studios, spanning established international names like Pragmatic Play and NetEnt down to smaller specialist developers such as Gamzix and Mechanico.
Is NetEnt available on 1King?
Yes. NetEnt sits on the confirmed provider list, which is notable since some GEO-restricted platforms leave this studio out entirely.
What does RTP mean on a slot game?
RTP, or "return to player," is a theoretical percentage of total wagers a slot is designed to pay back, calculated over a very large number of spins. Check the specific figure on each game's own info screen.
What's the difference between low and high volatility?
Low volatility means smaller, more frequent wins, while high volatility means less frequent wins that can be considerably larger. Neither is inherently better; it's a matter of playing style.
Can I filter the 1 King slot lobby by provider?
Yes. Filtering by provider narrows the lobby to a single studio's catalogue, which is useful if you already have a favourite developer in mind.
Do all slot providers contribute equally to wagering?
Yes, for slots specifically. Every slot contributes 100% of stake toward a bonus's wagering requirement by default, regardless of which studio built the game.