Wondering what you actually get to play once you sign in? The lobby holds more than 2,000 games, and the range covers slots, table games and live casino titles from a long list of software studios.
Microgaming is the headline name, with NetEnt, Play’n GO, Yggdrasil, Quickspin, Pragmatic Play, Push Gaming, Red Tiger, Big Time Gaming and NoLimit City alongside it, so 21 casino games run from simple three-reel slots to live dealer tables. The catalogue is broad rather than niche, which suits players who like to move between styles in one session.
21 Casino is run by Imperium Network Solutions Limited under a Curaçao licence. That licence is not from the reader’s country.
What the 2,000-game lobby offers
The size is the first thing you notice. A library above 2,000 titles means the slots category alone runs into four figures, and the search and filter tools do most of the work once you are past the front page.
Game types break down roughly like this:
- Slots, the bulk of the library, from classic fruit machines to Megaways and cluster-pays titles
- Table games, including blackjack, roulette and poker variants
- Live casino tables hosted by real dealers
- Instant win and scratch-style games
The provider list is where the lobby earns its keep. Microgaming supplies a large share of the slot catalogue, and the studios listed above each bring their own house style: Big Time Gaming for Megaways mechanics, NoLimit City for high-volatility slots, Pragmatic Play for frequent releases and a wide table game range, Play’n GO for steady output across themes.
Our preference here is for the spread of studios rather than the headline count. A 2,000-game library built on two or three suppliers gets repetitive within a week; this one draws on enough independent studios that a player chasing a particular mechanic, such as expanding reels or bonus-buy features, will usually find several options rather than one.
On return to player, the operator states that RTP varies by game and is set by the individual provider. There is no single site-wide figure to quote, and no published audit of the library’s average RTP.
How to check a game’s RTP before you spin
Because RTP is set per game, the reliable place to find it is inside the game itself, not on the lobby tile.
- Open the game and let it load fully.
- Look for an info or “i” button, usually in the corner of the screen or in the game menu.
- Open the paytable or help screen. The RTP figure is normally listed there, often with the game rules.
- Check whether more than one RTP is listed. Some slots show different figures for different bet modes or feature buys.
- Compare the figure across two or three titles from the same studio before you settle on one.
- If no figure appears in the help screen, ask customer support which RTP applies to that specific game.
The step players skip most often is the fourth. Where a game lists several RTP settings, the figure that applies depends on how you play it, so the number in the paytable is the one to trust for your session.
Strengths and trade-offs in the game selection
What works in the brand’s favour:
- More than 2,000 games, so the lobby rarely runs dry for regular players
- A deep provider roster, with Microgaming, NetEnt, Play’n GO, Yggdrasil, Quickspin, Pragmatic Play, Push Gaming, Red Tiger, Big Time Gaming and NoLimit City all represented
- Slots, table games and live dealer tables under one roof
- RTP published inside each game, which lets you check a title before committing money to it
What to keep in mind:
- No site-wide RTP figure is published, so comparing titles means opening each one
- Game availability can differ from what the lobby advertises, because some titles are restricted in certain markets
The second point matters more than it looks. A studio name in the lobby does not guarantee every game from that studio is playable where you are, so check the game loads before you plan a session around it.
What the bonus terms say about which games count
Before you deposit for a bonus, the game restrictions in the promotion’s terms decide how much of your play counts toward the wagering requirement. Look for:
- Which game categories contribute to wagering, and at what percentage
- Whether slots, table games and live casino count equally or not at all
- The maximum bet allowed while a bonus is active
- Whether winnings from certain games are excluded from the bonus
- Whether the bonus alone or deposit plus bonus has to be wagered, since the terms set the base
- Any game the promotion names as ineligible
If a category contributes nothing, playing it while the bonus is active does not move you closer to clearing it. The cashier and the bonus terms page are where the specific percentages sit.
Common questions about the slots and studios
Does 21 Casino have live dealer games?
Yes, live casino tables with real dealers are part of the library alongside slots and table games. The exact tables on offer depend on what the live providers supply at the time you visit.
Which provider makes most of the slots?
Microgaming supplies a large share of the catalogue, with NetEnt, Play’n GO, Pragmatic Play and the other studios listed above filling out the rest. The mix shifts as new releases arrive, so the lobby is the current picture.
Can I find a game’s RTP without opening it?
The operator points players to the individual game for RTP rather than publishing a library-wide figure. In practice that means opening the title and reading its help screen, or asking support about a specific game.
Where to start in the lobby
The game selection is the strongest part of 21 Casino. A library above 2,000 titles, ten named studios including Microgaming and NetEnt, and live dealer tables in the same place give a player plenty to work with, and RTP is available inside each game for anyone who wants to check before playing. Imperium Network Solutions Limited operates the site under a Curaçao licence.
The trade-off is that nothing is summarised for you: no site-wide RTP figure, and game availability that can vary by market. If a particular title matters to you, confirm it loads before you deposit.
Pick one studio you already trust, open three of its slots, and read the RTP in each help screen before you stake anything. That habit tells you more about the lobby than any list.
Gambling here is for adults only, 18+. If gambling stops being fun, free and confidential support services in the reader’s country can help. Play only with money you can afford to lose, and treat a bonus as no reason to deposit more than you planned.
This text draws on what the operator states about its games and providers, and was last updated in November 2026. We made no deposit or withdrawal ourselves. Where this text and the operator’s terms differ, the terms apply.
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