Novomatic: gaming-hall classics and RTP behind a B2B login

From gaming hall to screen: 1980 to Greentube

The company was founded in 1980 by Johann F. Graf, and its headquarters is still in Gumpoldskirchen, Austria. Novomatic grew up on physical machines and running gaming halls – a world where the player stands in front of a cabinet with three reels and a button. Today NOVOMATIC AG stands behind the brand.

The online branch has its own name. Greentube, based in Vienna, has been part of the group since 2010, and it is Greentube that brings Novoline classics – Ultra Hot, Dolphin's Pearl – to the browser and the phone.

Source: greentube.com and official group websites, verified 8 Oct 2026.

Why you won’t find Novomatic RTP in public

Greentube publishes a description, grid and volatility for its games, but keeps RTP behind a login to its partner area. Access is for B2B clients – casino operators, not players. For both Ultra Hot deluxe and Dolphin's Pearl deluxe our table therefore says ‘not published’.

We do not fill the gap with a figure from other websites.

The values circulating online often contradict each other, and we have no way to verify which game version they belong to. For the classic slots category this is key: the Novomatic versus BetSoft match-up is, among other things, a clash of two approaches to data.

What does that mean in practice? Open the game rules or info panel at a specific casino. If the operator lists RTP there, that is the figure valid for that installation – and essentially the only one that matters to you. If you cannot find it there either, you can contact the operator’s support. Nothing embarrassing about it, rather a good habit.

What you still have: volatility and the rules

With RTP missing, two usable data points remain. The first is volatility on the 1–5 scale that Greentube lists for its games. Ultra Hot deluxe rates a four, Dolphin's Pearl deluxe the full five.

A five on a simple ten-line slot may come as a surprise. The explanation lies in how the game is built: a large share of its potential is concentrated in free games, which arrive irregularly. In between there can be a longer stretch of small wins or none at all.

The second data point is the rules themselves. With classic slots they are short and readable in a minute, which is exactly why you should not skip them – the game tells you nothing else about itself. A note on the scale: Hacksaw uses the same five-step meter, but neither studio publishes its methodology, so a four at one need not match a four at the other.

Ultra Hot deluxe and Dolphin's Pearl deluxe

Ultra Hot deluxe is a classic in its purest form. A win comes only from three matching symbols in a line, and the one twist is when the same symbol fills every position – then the win is doubled. No wilds, scatters or free spins. Details are in the Ultra Hot deluxe profile.

Dolphin's Pearl deluxe adds one more layer. The dolphin acts as a wild, substitutes for symbols except the pearl and doubles any win it is part of. The pearl is the scatter and opens 15 free games in which wins are tripled.

Illustrative example (not Dukat.bet parameters): a line that would pay 2 EUR in the base game pays 6 EUR in free games. The full breakdown is on the Dolphin's Pearl deluxe page.

Diamond Link and Win Ways: the newer face of Greentube

Novoline is not everything. Greentube also develops its own series, the best known being Diamond Link and Win Ways™. These are more modern formats, but we do not have the parameters of individual titles in our verified table, so we give no numbers here.

The advice for players is simple: a Novomatic logo does not automatically mean three reels. If you are after a true classic, go by the grid and number of lines in the game description, not by the brand.

Who will feel at home with Novoline

Novomatic’s classics are not for everyone, and they do not pretend to be. They suit best a player who wants a quick round, a clear result and rules without footnotes. With Ultra Hot deluxe you can tell at a glance why you won or did not.

The second group are people who know these games from gaming halls and are looking for exactly that experience online. Here Novomatic has an edge other studios will struggle to take away – the original is the original.

Who will the classics not suit? A player who needs to see RTP before starting, compare versions or combine several bonus mechanics. That player is more likely to move to BetSoft or to the modern slots category. One more warning: simplicity tempts you into a fast pace. With a high-volatility game, set a budget and a time limit in advance – more in the section on responsible gaming.

Novomatic versus BetSoft: a contest of transparency

In the classic slots category, Novomatic faces BetSoft. Both make games that thrive on simplicity and familiar symbols, yet their approach to data is almost the opposite.

The table does not show that one studio is ‘better’. Novomatic offers nostalgia and proven simplicity, BetSoft more numbers to decide by. If you need RTP in front of you before launching a game, BetSoft will meet you halfway. If you want exactly the game you know from the gaming hall, you will stay with Novomatic – and check the RTP only inside the game. We cover the context of both slot categories in the category selection guide.

Novomatic at Dukat.bet and Slots Bonus

At our check on 8 Oct 2026, Novomatic was in the Dukat.bet provider list. We do not confirm the availability of specific titles such as Ultra Hot deluxe or Dolphin's Pearl deluxe – check it in the lobby using the provider filter.

For slots, the offer is Slots Bonus – 500% up to 3,000 EUR + 15% Cashback. How classic slots count towards it should be checked in the official bonus terms.