

Codex of Fortune Slot Review
Slot Provider: NetEnt
RTP: 96% | Variance: High | Maximum Win: 10,000x
Our Score: 7.6
About Codex of Fortune
Reviewed by: Editor, All Slot Sites
Published Date: 2nd June 2021
How We Review Slot Games
We test and rate all slot games across 5 criteria, assigning a score out of 10 for each and an overall score that is an average of the 5. To build an accurate assessment of each game we gather information from the supplier and play in real play or demo mode. Find out more.Codex of Fortune is the latest slot from Swedish gaming giant, NetEnt, and it comes hot on the heels of their Dazzle Me Megaways™ game, an expanding reels upgrade on a fan’s favourite, and the Greek-themed Partheon Quest for Immortality, both of which showcase a high quality of artwork. The same can be said of Codex of Fortune which itself is a sequel to their January 2019 release, Turn Your Fortune. Codex comes with superb and lavish design with a French theme and enhanced gameplay and payout potential.
One of its most notable features is the ability for the player to affect the RTP in the bonus round by collecting special key icons. More on that in a moment.
The sophisticated gold and navy colour scheme and intricately-drawn icons take this slot to a new level visually, whilst it is also notable that the volatility is turned up a notch to so that we are now playing with a highly volatile maths model alongside a new, variable RTP.
One of the important features you will notice when you open up the game is that to the side of the reel grid there is a gold stacked cylinder – the ‘codex’ of the game title – which has 5 bonus segments. This is critical to the Save the Keys bonus, a new feature in which you collect keys to level up on the bonuses and chase the biggest wins of the game.
In short, NetEnt haven’t just churned out a re-work of a popular slot, but instead they have worked things up to a new level as you will find out as we progress further into our review
Codex of Fortune Game Information
- RTP: 96%
- Variance: High
- Maximum Win: 10,000x
- Progressive Jackpot: No
- Reels: 5
- Rows: 3
- Paylines: 40
- Minimum Stake: £0.20
- Theme: Money
- Features: Fortune Spins, Re-Spins, Key Collects, Free Spins, Level-Ups
Codex of Fortune Review Scores
- Gameplay and Features 7
- Maximum Win 8
- Theme and Design 8
- Paytable 7
- RTP and Variance 8
Codex of Fortune Pros and Cons
What We Liked
- Sophisticated design and colour scheme
- Multi-level bonuses
- Free Spins and Respins
- 10,000x stake top payout
- Customisable gameplay - up to 98% RTP
What We Didn't like
- Variable RTP could get as low as 90.2%
- Too similar to Turn Your Fortune
RTP and Variance
Our Score 8
What is RTP?
RTP (Return to Player) refers to the amount a game will pay out in cash prizes expressed as a percentage of all the money wagered on that game. For example, a 96% RTP means a game will pay out £96 for every £100 wagered. This is an average number and will vary from one session to the next. Read more here.What is Variance?
Variance refers to how far a game will deviate from its RTP over time. High variance games deviate a lot and produce uneven win distributions and unexpected windfalls. Low variance games provide a more stable and even distribution of wins. Read more here.Although this slot is highly volatile and risky, the minimum bet of 20p is still reasonable for everyone to enjoy a few mysterious spins. Just keep in mind that volatility when choosing your stake level. One of the most interesting features of Codex of Fortune is the variable RTP, which starts at a lowly 90.2% and goes up to an impressive 98%. And here’s the fun part – you can improve the RTP by saving keys to use during Free Spins – a savvy move for the best payout opportunities and one that can mitigate against the high variance.
The max payout of 10,000x stake is tempting and certainly a big improvement on the 2,000x stake jackpot of the original Turn Your Fortune slot.
Symbols and Paytable
Our Score 7
The premium symbols here are the golden lions, owls, turtles, fish and shells and these can pay up to 10x stake for 5 of a kind. The low paying symbols are the traditional high cards running from Jack to Ace, which pay up to 2x stake for 5 matches. Look out as well for the Wild symbol which is the golden butterfly, which substitutes for all other symbols to create more potential wins.
There is also a peacock, which is the Scatter, and a golden key, which appears on reel 5 during Free Spins and Respins. All the symbols are pleasingly golden and decorative-looking, giving the slot an arty edge.
You have the chance to win 200x stake from the Re-spins and up to 2000x stake during Free Spins. These bonus features can be triggered together for the best potential payouts. You can also boost your rewards from collecting symbols to reach higher levels on the codex meter and potentially win 10,000x stake during Free Spins.
Features and Gameplay
Our Score 7
Fortune Wins Respins
Landing 2 Scatters triggers Respins, which locks all winning symbols into place to become collectible symbols. If you land any more, another Respin will begin. Finding more symbols or keys moves the codex meter up a level and Respins continue until no new symbols appear or you’ve collected 20 symbols.
Saves the Keys Feature
After Respins, the Save the Keys feature is triggered. This lets you use the keys to increase your wins from the Respins or save them for Free Spins – and potentially even bigger rewards.
Free Spins
Landing 3 Scatters on reel 1, 3 and 5 triggers Free Spins. A bonus wheel reveals the number of Free Spins awarded between 7 and 13, along with the collectible symbol. This can also award a key symbol to begin the bonus game at a higher level. You can use any saved keys here to level up and play Free Spins at a higher coin value.
The Final Verdict
Our Score 7.6
Codex of Fortune is an improvement on Turn Your Fortune with bigger prizes, sophisticated bonuses and an opulent appearance. The gameplay is similar, so if you’re not a fan of its predecessor, Codex of Fortune might not have enough to stir your interest. If you’re game for a spin though, the Free Spins round is the highlight and can offer big winning potential with 10,000x achievable if you climb to top bonus level. We like the way you can choose your own strategy when it comes to saving the keys, so it’s possible to boost your RTP up to 98% if you save them up for the high-paying Free Spins. The high volatility makes this a risky play, but Codex of Fortune has enough clout to make it worth a gaming session. This intriguing slot is released to UK slot sites at the end of June 2021.
Who Made Codex of Fortune?


- Name: NetEnt
- Established: 1996
- UK License: 39861 (Under Evolution Gaming)
- Total Games: 500 +
- Known For: Massive range of games, branded slots, big progressives, low to high variance
- Popular Slots: Starburst, Dead or Alive, Gonzo's Quest, Aloha! Cluster Pays
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