Swedish, patient and in-house
Play'n GO traces its roots to Växjö in southern Sweden in the late 1990s and began making online casino games in the mid-2000s. It has stayed independent and builds everything itself, from the maths to the artwork to the platform the games run on. That shows in the product: the menus are the same in every game, the paytables are clear, and there are few surprises in how a feature is explained.
Rich Wilde and the book that started a genre
Book of Dead, released in 2016, sent the studio's adventurer Rich Wilde into an Egyptian tomb. The mechanic was borrowed from the arcade halls of Germany and polished: before the free spins begin, one symbol is chosen at random to expand across whole reels. The game was so successful that 'book' slots became a category of their own, copied by dozens of studios. Play'n GO kept the explorer going with Legacy of Dead, Tome of Madness and others.
For a player, the appeal is the clarity. Ten free spins, one special symbol, and a top prize of 5,000 times the stake. It is volatile, but it is honest about why: everything depends on which symbol the book picks.
Beyond the books
- Reactoonz (2017): a 7x7 cluster grid of cartoon aliens, with a charge meter that fills as clusters pay. A completely different rhythm from the books, and one of the studio's longest-lived hits.
- Moon Princess: a cascading grid with three character powers, popular for its steadier middle ground.
- Fire Joker: three reels, five lines and a respin, for anyone who wants a fruit machine in miniature.
- Rise of Olympus and Legacy of Dead: sequels and cousins of the formula above.
The RTP-version question
Play'n GO is open about publishing several return-to-player settings for many of its games, and letting the operator choose. Book of Dead's top setting is 96.21%. Lower settings exist, running down by a couple of points at a time. Nothing about the game looks different: same reels, same explorer, same book. Only the maths has moved.
| Setting | Return to player | Expected cost of €1,000 of spins |
|---|---|---|
| Top version | 96.21% | about €38 |
| One step down | about 94% | about €60 |
| Two steps down | about 91% | about €90 |
The table is arithmetic, not a forecast of any evening, but it shows why the check is worth ten seconds. Open the game, press the menu, and look for the line stating the theoretical return. If it is well under the headline, the same game is costing you more there than elsewhere.
Demo mode, done properly
Play'n GO offers free versions of nearly all its slots, and they are worth using with a purpose. Set a notional budget, say €50 of play money at a 50c stake, and run it down. Note how many spins it lasted, how many times the free spins arrived and what they paid. Then do the same on a second game. After two or three runs you will know more about how the studio's maths feels than any description can tell you. Remember only that the demo may run the top RTP setting while a casino runs a lower one, which is one more reason to check the figure in the real game before staking money.
Who Play'n GO suits
Players who like to know what they are playing. The studio's games are rarely the most extreme on the market and rarely the flattest; they sit in a readable middle, with features you can explain to a friend. If you want something harsher, Hacksaw Gaming and Nolimit City are the obvious next steps; if you want gentler, the classics of NetEnt are closer. The Egyptian cousin from the German arcade tradition is on the Eye of Horus page, and all eight studios are on game providers.
Where to look for book-style and cluster slots
We do not claim any particular studio is in the lobbies of the five casinos we cover. What we can point to is where this style of game is easiest to find, and each first-deposit offer.
Cas2Bet
100%CAS100
Book slots come from many studios, and the biggest catalogue of the five makes comparing them easiest. A 100% match applies.
CasinoPurple
100%PURPLE100
A 3,843-game lobby with a simple 100% match, for a book slot at a steady stake without a large bonus to play through.
ZeSlots
250%ZESLOTS250
The same 3,843 games with 250% on the first deposit, for longer sessions on expanding-symbol slots.
CasinoWinner
300%WIN300
The boldest welcome of the five triples a first deposit; with a match that size, the terms deserve a careful read.
YourWin24
250%YOUR250
Expanding-symbol reels on one side, a sportsbook on the other, one balance for both; the code is worth 250%.
Sources
- Play'n GO game rules and information screens, including the published RTP settings for Book of Dead.
- Play'n GO corporate information on the company's history.
- Catalogues of our five casinos counted on 7 September 2026.
Written on 24 September 2026. The RTP settings in the table are rounded illustrations; the in-game figure is authoritative.
Frequently asked questions
What is Play'n GO's most famous slot?
Book of Dead, released in 2016, starring the explorer Rich Wilde. Its random expanding symbol in free spins was copied across the industry.
What RTP does Book of Dead have?
96.21% in its top setting. Play'n GO also publishes lower settings, and the casino chooses which one to run; the game's menu shows the figure.
Where is Play'n GO from?
Sweden. The company traces its roots to Växjö in the late 1990s and has made online casino games since the mid-2000s.
Are Play'n GO slots high volatility?
Some are, such as Book of Dead; others, like Moon Princess or Fire Joker, are gentler. The volatility rating is shown in each game's information screen.
How do I know which RTP version I am playing?
Open the game's menu or help section and look for the theoretical return to player. It is stated in every Play'n GO game.