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Secret Code Slot NetEnt

Solve one of the world's grandest mysteries in Secret Code. Using ancient medieval artifacts and the tools at your disposal, find the answer and walk away rich. Give Secret Code a try on our website for free. If you want to play for real money, just sign up at any reputable NetEnt casino.

Start by selecting how much you want to wager. Use the arrows to the left and right of Coin Value to pick your coin denomination. Available sizes range from 0.01 to 0.50. Next, press the arrows by Level to adjust the number of coins wagered on each line. Reduce or increase the numbers of lines with the arrows by Lines. Press the circular arrow button to begin spinning, or use Max Bet to play with 5 coins on all 20 lines. You may also use the Autoplay button if you want to spin several times in a row.

Secret Code is filled with plenty of mysterious and lucrative features. Get a wild on 2, 3, or 4 and watch it expand to cover the whole reel, increasing your win potential significantly. Get three or more scatters to start the free spins round, which has a unique twist. Instead of retriggering, getting two or more free spins symbols during the free spins game increases the multiplier by the number of symbols. Finally, get three Bonus symbols on reels 3, 4, and 5, where you can try to unlock chests to win instant cash prizes. Overall, this Secret Code is one worth unraveling.

Game Play

Coin Value: Change the base coin denomination.
Level: Add or subtract coins to every active line.
Lines: Select the number of active paylines.
Circular arrow button: Begin spinning at the chosen bet.
Max Bet: Begin spinning at a bet of 5 coins on all 20 lines.
Autoplay: Begin spinning without interruption.

Play game
Software NetEnt
Slot Type Video slots
RTP 96.3%
Special feature Wild Scatter Free Spins
top10 Slot details
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  • RTP

  • Bonus Game

  • Progressive

  • Wild Symbol

  • Scatter Symbol

  • Autoplay Option

  • Multiplier

  • Free Spins

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Secret Code Slot Reviews by Players


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Fiekie247 1087 reviews
South Africa
Reviewed on December 2, 2019


Secret Code is a very old release from Netent, with 5 reels and 20 paylines. This dark slot comes with a haunting soundtrack where you will hear chanting monks with the wind whistling through the corridors of an ancient stone castle, almost like in winter when the wind blows very hard making that noise on the outside.

When I first saw the slot looks like it's set in a cage, almost like the Mummy. Look out for the wild symbol (a cloaked man holding a knife) as he substitutes for all symbols except the scatter and bonus symbols. Now wild only appears on the 3 middle reels and expands to cover the whole reel when part of a winning combination. If you manage to get 3 wilds you can prepare yourself for huge wins, as the paytable is still a bit old school, so you can get pay values of 1000 – 5000 coins for 5 of kinds with the higher paying symbols. This means you can get premium symbol on reels 1 and 5 with 3 wilds, which means if you get 5000 coins, x7 as the wilds substitute, let alone if you do this during free spins with an increasing multiplier, then you in for huge wins. Make me wonder what's the maximum win the slot is offering.

There is also a bonus feature – You can activate the feature by getting the key and lock bonus symbol on reels 3, 4 and 5. Its basically like a pick me feature, however, you need to take the keys and match them with statues. For each key correctly allocated, you are awarded with a set of coins. Once the feature ends you gamble your full winning amount or half of the winnings by matching key to the correct statue.

The free spins feature which is played when 3 or more scatter symbols appears anywhere on the reels. Let me assure you getting 3 scatters is very difficult, you often get 2, but that 3rd one can take forever to land. You then choose a scatter to reveal the number of free spins and the multiplier you’ll play with. There’s up to 15 free spins to be won and a maximum start of x3 multiplier.

During the feature, you can benefit from an increasing multiplier. 2 or more scatter symbol will reveal the multiplier by the number of scatters shown. If you were to get 4 scatters, the multiplier would go up by 4. The maximum multiplier can reach 20x

The game has the potential, but I never really saw very huge wins. However, you can see where the games potential is though, but getting 3 wilds is not easy by the way. I had a couple of x100 and x200 wins from base game, however not nothing really during free spins, but the bonus trigger often and you can win something there.
Afi4wins 2050 reviews
Reviewed on December 27, 2017


Do you like watching the movie 'DaVinci's Code'? Or any other treasure hunting movies like those of Raiders Of The Lost Ark series? Yeah, I love them too. All those mysterious clues are mind boggling to decipher, and how each one finally got revealed was even more interesting. Food for the brain, so to speak, hehehe. This Secret Code game is based on such a movie, so lots of players are gonna love playing it, although there's no need to decipher any clues, except to use the right key for the right box. If you've played this game,then you'd know exactly what I meant, hehehe.

There's nothing new in the concepts of the game - it's yet another mix-and-match concoction by NetEnt, but it seems to work pretty well in this game, as compared to some others. The best part is the Expanding Wilds on reels 2, 3 and 4, and getting all three would certainly produce some good wins. So watch out for that expanding Hooded Man, the Wild symbol. Unfortunately, it doesn't pay anything for itself, nor does it double any wins with it, but this is something quite common with a lot of NetEnt games.

The Scatter symbol is one symbol that got my eyes opened. At first glance, it looked like the word 'pornstar', when actually it is 'xornsto'. That '*ornst*' letters lighted up the wrong word in my brain! Hahaha. Anyway, this too is a non-paying symbol, only serving to trigger 10 free spins with an Increasing Multiplier feature. Getting 2 or more Scatter symbols during the free spins increases the multiplier up to an incredible 20x! Nah, I've never gotten that far in my plays, but that would be the best time to hit those Super Mega Wins! Any retriggers during the free spins? Oh boy, you are a greedy one aren't you? Hahaha.

See that Key icon with the word 'Bonus'? Well, that is yet another non-paying symbol in the game, serving to trigger a Bonus game, whereby you choose a key to unlock a box to win prizes - 5 keys and 5 boxes, each held by a hooded being, either an angel or a devil. Pick the devil and you win nothing, but there's always at least 1 or 2 angels amongst them, so you won't be left with an empty pocket. The prizes can vary in size, from very small to very big, but I have no idea how big that can be. However, from what I have won, these could possibly be as much as 100x the total bet, so that's pretty good!

Even though the Wild, Scatter and Bonus symbols do not pay anything, which isn't to my liking, the highest symbol does have a good value of 4000x the line bet for 5 of them, so you need to get this symbols with that 3 Wild Reels to get the best wins. From my many plays on this Secret Code game, my best win still remains at 237x, but that is acceptable enough for me. Trying to get a much bigger win would require lots more play on the game, no doubt about that, but it is a good game to play!
raverbabe 559 reviews
United Kingdom
Reviewed on September 27, 2016


Secret Code is another NetEnt game I'd forgotten all about until it popped up on the VideoSlots battle schedule just lately, and that's a real shame because it has many opportunities for great wins as well as a 4000x stake maximum win from a single spin available in the bonus mode although I'd be surprised if anybody has ever seen it as you'll need the maximum 20x multiplier in the free spins to achieve it and that is near on impossible to even get close to in my experience!

There are expanding wilds on reels 2, 3 and 4 but I found myself pretty surprised when they didn't expand on several occasions and when I studied the paytable there is a pretty cheeky catch to this - the wilds only expand to cover the whole reel if there is already a winning payline on the screen, they will NOT expand in order to create a win on an otherwise blank spin. That's a pretty strange setup that I don't recall seeing on any other slot and I do wonder if it can possibly have been necessary for NetEnt to implement this feature in that way.

The aforementioned free spins mode has a multiplier "up to" 20x, but the way it increases is also very unique - each time a scatter lands on the screen it adds an extra 1x, so for example if four scatters land on a single spin 4x is added to your multiplier for the remainder of the free spins. This is why I said it would be VERY unlikely for anybody to ever see the maximum 20x, although if your initiating spin is a five scatter hit then you might have a much better shot as it's possible to pick a higher starting multiplier.

Overall I think this this is one of the better NetEnt games, the base paytable definitely is better than the vast majority of their newer slots and I've had a few reasonably sized wins whilst playing it in the free tournaments at VideoSlots, enough to make me want to try the game for the first time in a couple of years in "real money" mode sometime soon!
Inactive user
Reviewed on May 31, 2016


Secret Code by NetEnt comes with 5-reels and 20-payline and it's playable from 0.20 cents bet per spin. I like the theme and its soundtrack and the game name sounds so strong and powerful. Ancient stones are very attractive to me, so it comes naturally that I like the symbols in this game, especially those with stones, and there are a few in this slot. What caught my attention was the Scatter symbol and the sign or name on it, which is 'Xornsto', which I thought was a name for some ancient God, but I was mistaken. I found out that Xorn is a fictional character published by Marvel Comics. Now, everything has made more sense to me. NetEnt used Marvel Comics for their inspiration and they took one character's name out of them and made it into a very nice Scatter symbol. I like the Wild symbol too when it covers the entire reel.

The Wild symbol substitutes for all except for the Scatter and the Bonus symbols. On reels 2, 3 and 4, it expands and covers the entire reel whenever there is any winning combination. 3 Bonus symbols on reel 3, 4 and 5 activate a Bonus round. There are free spins to be won too when you trigger them with 3 Scatter symbols, and the Free Spins game has an increasing multiplier up to x20.

The paytable looks really generous, with 4 of the top symbols paying really nice rewards for collecting 5 of them. In Secret Code, the 4 most valuable symbols pay 4000 coins for 5 of them, followed by 2000 coins, 1500 coins and 1000 coins. Unfortunately, the Scatters have no win value and this is a big minus point. I think this game has a clone, which is Secret of the Stones, also created by NetEnt, which is amongst my favorite games ever. I am a little concerned over the paytable in Secret Code because in order to make some serious big wins you, you must collect as many 5-of-a-kind wins as possible. I can't remember when the last time was when I actually collected any 5-of-a-kind win in this game.
zerooo 742 reviews
Reviewed on December 30, 2015


Secret Code is another video slot machine from NetEnt software provider. This one has 20 pay lines. The theme in this game is good, about secret code. I played it a few times, but I had no any big winnings at it.

The base game is interesting. I had some decent winnings because of expanding wild symbols. I like that when wild symbols are on the reels, they expand to entire reel and raise your winnings. Maybe the only thing that bothered me was that wild symbols can expand only on 2, 3 and 4 reels.

The bonus game starts when you get 3 bonus symbols. This symbols appears on reels 3, 4 and 5. Later there are keys and you have to match them with box chest. I never win anything special at this game, most of the time winnings were around x 20 bet or even less. At the end of this bonus you can double your winnings and later you have to match one more key with box. I tried also this one because I like that you can double your winnings with one click. But I lost it, I did not match box and key right.

There is also free spins feature. When you get three scatters, you have to select one of those symbol to reveal the number and multiplier of free spins. I had almost always 10 free spins at x1 multiplier. I think this is not good, and my winnings were around x 10 bet every time when I had x1 multiplier.

Otherwise this is a decent game. But I do not like it very much. The reason is because I have no luck on it. Maybe it could provide some good winnings, the graphics are good. Maybe the sounds and music could be better. I do not know if I will play it more in future. I will rate it with 6 stars, I do not like it very much.
winningfly 283 reviews
Reviewed on September 24, 2015


Secret code it is NetEnt game. This game is very interesting, specially I love bonus feature, no any other NetEnt game has such interesting bonus.

I like theme of game. Not sure how to describe it, but it something mystery, mystic, and very interesting.

I like expanding wilds in this game. Expanding wilds appear on middle reels, which is very usual thing for NetEnt games. Unfortunately nothing more for this wilds, but it is still very good to have 3 expanding wilds in any slot.

I like that payouts here can be really solid. Most symbols of course pay low, no offense because there is expanding wilds. But two best symbols pay very good, and you can get couple 5 of a kinds same time, once again it is very good that there is expanding wilds.

Freespins feature can be heartbreaker. 3 or more scatters landed will give you ability to pick scatter, which show you your amount of freespins and multiplier. Any 2 or more scatters during freespins will increase multiplier by 1 for each scatter. Highest possible multiplier is x 20, but I am not sure how lucky you should be to get it. Best i had it was x 7 multiplier and 3 freespins left. Anyway payout potential is huge. Once I hit around 300 bets win, had x 4 multiplier, and land 3 expanding wilds. Symbols was bad, but it was enough for such payout.

Bonus game is awesome. Triggered when 3 bonus symbols appear on last 3 reels. You then try to open statues with keys, each correct choice award you coins wins. But most fun start after it. Then you could double or double half of your winnings. Just pick right - and winnings doubled. Not sure about limits in this bonus game. Once i doubled 3 times in a row, and won about 250 bets. Two more times and it could be 1000 bets wins, but i decide to stop.

10 stars for this game, two features are awesome, just need to catch it.


I could not write anything bad about game with 10 stars from me this is right?
hajnrih 1379 reviews
Reviewed on August 29, 2015


Secret Code is a 20 payline, 5 reel slot with a mystery theme coming from NetEnt. I have played this game a lot and I really like it. The graphic is descent, along with the animations and the game has an interesting gameplay so it won’t get bored after long sessions. I also like the background music and you can really go deep into playing this slot without being interrupted.

The game has a good paytable with the highest paying symbol awarding a win of 4000 coins followed by 2000 coins for the second symbol so you can expect some descent wins during base play. The wilds symbols in the game come only on reels 2, 3 and 4 and expand to cover the entire reel. This way when you get at least 2 wilds you usually have a 20-30 x bet win.

The scatters in the game don’t have a payout attached only activate the free spins bonus. You usually get around 12 free spins starting with a x 1 multiplier and for every 2 or more scatters you get extra multipliers up to x 20. No need to say that the bonus game can be very profitable if you manage to get a high number of scatters leading to a very high multiplier. This game has another cash bonus triggered by 3 bonus symbols. Here you have to pair keys to boxes which award coin prizes. You also have a choice to double your win here which is profitable at times.

This game can be great for wagering bonuses and upping your balance. The bonus rounds comes very often and even during base play you get occasional 20-30 x bet wins so your balance doesn’t drop too much. In the free spins bonus you usually get 40-50 x bet wins and sometimes a nice 150 x bet win. You can also get the cash bonus in the free spins so it’s a nice addition to the overall win.
paquito76 867 reviews
Reviewed on March 30, 2014
I like how Secret Code can bring me back to the dark and mysterious Middle Ages using simple but beautiful graphics, images (it’s especially true for the bonus game). Seal rings, relics, monk, sand-clock are among the symbols we can play here and they’re great in their simplicity.

The 20-payline slot offers all the 3 features (and more extras) that I seek for a gambling game. Wilds appear on the middle three reels and spread its functionality for all 3 spots of that reel. Scatters trigger the free spin feature and also determine the number of spins and multiplier and I think this has one of the best possible multiplier numbers in the business even though we haven’t been introduced to each other but the possibility of wins with x20! multiplier is quite something. Just think of a win during free games with x20, on the maximum 5 coin level and the best paying 5 of a kind (x4000), which would be a spin worth huge 400.000 coins. Free games can’t be re-triggered but the appearing Scatters at this stage increase the multiplier value, but I suppose not too many of them pop up at a session at x20. In the Bonus we have to match keys with proper statues and if the right key finds its statue we can see an angel face behind the falling mask. I like this mini game’s angel-demon theme but love more the opportunity to increase my winnings as the wins can be doubled by gambling feature where we have the same task except this time there’s only one key there to use.

I always play Secret Code with max. coin number at €1 or €2 total bets. The bonus usually gives back around €20-€40 so I very often go on and try my luck at gambling feature. Once while was playing with €1 and rewarded just €21 I had 3 successful gamble rounds with each time doubling the numbers and because I didn’t dare to make a 4th selection and stopped at 3 and won total €168. It was enough money to my budget to not see it evaporating followed by my pitying glance. The usual free spins for me at that stake are 15-20 spins at x3-x5 multiplier (these are far away from the x20 but maybe one time…) and my biggest win didn’t exceed the €100 limit but it rarely comes out, at least comparing to the bonus games.

Maybe it just doesn’t favor me but the already mentioned win with bonus was my best run here, so I hardly can speak in superlatives about most of my sessions I spent with Secret Code. In the end, it’s a decent slot game with many positives, and has the ability to entertain players with proper graphics and good bonus rounds.
Adebisi213 447 reviews
Reviewed on January 30, 2014
Secret Code is one of those games I've enjoyed playing very much. It was an absolutely pleasure playing this game. This NetEnt slot gave me a lot of playtime en entertainment. First time I chose to play this game was when I had a limited gambling budget available.

Sometimes I prefer playing older games, which I haven't played before and that was the case with Secret Code. The minimum bet size on this game is only €0.20, but my budget of €40 allowed me to play a bit higher. So I chose to play €0.40 bets and it always amazes me how long sessions can take once you play small lol.

Sure you're sacrificing the payout on a big win when playing low-sized bets, but sometimes when a budget is small then that's the right choice. Anyway Secret Code has 20 paylines, 5 reels and lots of features to reward you royally.

According to NetEnt this game is based on the mysterious surrounding the illuminati. I must say the symbols match those mysteries perfectly. On reels 2, 3 and 4 there are wild symbols which expand and take over the whole reel when they appear.

Although I don't think I saw 3 of them appear at the same time during my sessions, I did have a lot of 2 wilds appearing to complete my five of a kinds. Albeit lower paying symbols most of the time. I would rate Secret Code as a low to medium variance type of slot, since it spits out a win very often and 20x, 30x bet size is quite regular as well.

Perfect option for bonus grinding in my opinion. The fun parts about this game is not only the expanding wilds, but also the Bonus feature (activates when hitting bonus symbols on reels 3, 4 and 5) and the free spins feature (3 or more scatters needed).

The bonus game takes you to some evil looking ghostly monks. While receiving a couple of keys, you have to open their boxes. Each box reveals a price, before advancing to the next stage. There you only get one key, and also the option to risk your win and win more, risk only half or stop.

I don't think I ever won more than 5x to 10x my bet size in this bonus game. However, it's a fun additional feature.
I also had the free spins feature multiple times. When you get three scatters, you pick one which awards a random number of free spins and a set multiplier. I had 12 free spins and an 1x multiplier most of the time.

When another 2 scatters show up during free spins, you get additional multipliers. Almost each one of the free spins sessions it had paid like 60x bet size on average. I just couldn't go broke on this game, therefore it's so nice to play. I'm probably a little bit in profit with this game, and that's rare.

Final rating for Secret Code is 8.5/10.

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