Secrets of Atlantis is NetEnt’s underwater mythology slot, built around the legendary sunken city and an unusual Win Both Ways system. This mechanic distinguishes it from many conventional online slots, as winning combinations can form from either side of the reels. It combines medium volatility with a 97.07% RTP, 23.00% hit frequency and maximum payout of 1,600x your stake. UK players should verify the displayed RTP and play only through a licensed casino.
Casinos Where You Can Play Secrets of Atlantis in the UK
Key Secrets of Atlantis Facts
| Feature | Information |
|---|---|
| Release Date | 24/08/2016 |
| Provider | NetEnt |
| Theme | Atlantis, Underwater, Mythology |
| Reels & Rows | 5×4 |
| Paylines/Ways | 40 Fixed Paylines – Win Both Ways |
| Volatility Score | Medium (3/5) |
| UK RTP Version | 97.07% |
| Global Max RTP | 97.07% |
| RTP Range | 97.07% published |
| Min/Max Bet (UK) | £0.20–£200.00 |
| Max Win | 1,600x stake |
| Hit Frequency | 23.00% |
UK Compliance Deep Dive: Is Secrets of Atlantis Fair & Legal?
RTP Variation Warning: The verified provider RTP for Secrets of Atlantis is 97.07%. NetEnt currently publishes this single figure rather than a documented numerical RTP range. However, always check the paytable before you play Secrets of Atlantis for real money because the loaded game’s information screen is the definitive source for the configuration being offered.
UKGC Banned Features Check: Secrets of Atlantis predates the UK’s newer online slot design restrictions. However, a compliant British version cannot use autoplay, turbo play or functionality that bypasses the minimum 2.5-second game cycle. These rules apply when the game is supplied through a UKGC-licensed operator.
Stake Limit Compliance: NetEnt’s underlying game specification allows stakes from €0.20 to €200.00. However, regulated British limits override the international maximum. Players comparing no wagering casinos are still subject to the same statutory online slot stake limits when using UKGC-licensed operators. Players aged 25+ can stake no more than £5 per game cycle, while players aged 18–24 are capped at £2.
Responsible Gambling Integration: Medium volatility and a 23% hit frequency still allow losing sequences between paying spins. Therefore, set a fixed session budget and use tools such as deposit limits and session reminders. If you claim a 200% deposit bonus, check the wagering requirements and eligible games before using the bonus funds. A larger promotional balance should never be treated as a reason to increase your normal stake.
Fairness & RNG Certification: Secrets of Atlantis uses randomised outcomes, so previous spins do not influence the next result. Gambling software supplied through UKGC-licensed operators must comply with the applicable remote gambling and software technical standards.
First Impressions: Theme, Graphics & Soundtrack
Secrets of Atlantis places its transparent reels over a submerged city filled with ruins, marine life, jewels and a mysterious mermaid. Blue and turquoise dominate the artwork, while gold highlights clearly signal progress towards a Colossal Symbol Re-Spin. Meanwhile, aquatic effects and restrained background audio reinforce the underwater atmosphere without overpowering play. The merged 3×4 Colossal Symbol creates the game’s most noticeable visual transformation. Despite its 2016 release, the UI remains clean and easy to follow.
Base Game Mechanics & Payouts
Mechanics:
Secrets of Atlantis uses five reels, four rows and 40 fixed paylines that pay in both directions. The Highlight Feature can illuminate positions across reels 2, 3 and 4, while partially visible Mermaid Nudge Wilds move into position to cover an entire reel.
Symbols & Payouts:
Sea creatures, gems and Atlantean treasures form the regular paytable, while the Mermaid acts as the Wild. The strongest standard symbol is the pearl-filled clam, followed by premium underwater treasures.
- Pearl/Clam: Highest-paying regular symbol
- Red Gem: Premium symbol
- Green Gem: Premium symbol
- Purple Gem: Premium symbol
A Closer Look at the Bonus Features for Secrets of Atlantis
Mechanics:
When every position across reels 2, 3 and 4 becomes highlighted, those three reels merge and trigger a Colossal Symbol Re-Spin. A single 3×4 Colossal Symbol then occupies the merged centre section. If that entire merged reel becomes highlighted again, another Re-Spin is awarded. Colossal Nudge Wilds can also move into full view and cover the complete merged area.
Bonus Weighting:
Secrets of Atlantis is unusual because it has no traditional Free Spins round or Scatter-triggered bonus. Instead, its feature value is integrated directly into the base game through Highlights, Nudge Wilds and Colossal Re-Spins. NetEnt does not publish an RTP breakdown showing the precise percentage assigned to the Re-Spin feature, so no unsupported weighting should be attached to it.
From the Player’s Mouth: Real Experiences & Expert Advice
Player Sentiment: Player reviews repeatedly praise the Win Both Ways mechanic and anticipation created as the three centre reels become highlighted. However, feedback is more divided on the absence of conventional Free Spins and the modest 1,600x ceiling. Some players also report extended empty-spin sequences despite the game’s relatively high RTP, highlighting the difference between long-term theoretical return and short-term results.
Expert Tips for Volatility:
- Tip 1: Base your stake on a predetermined session budget rather than increasing it while waiting for the Highlight Feature.
- Tip 2: Remember that the 23% hit frequency covers all paying outcomes – it is not the trigger frequency for Colossal Re-Spins.
- Tip 3: Use the 97.07% RTP as a long-term mathematical measure, not a prediction of what your individual session will return.
Secrets of Atlantis Mobile Performance
Secrets of Atlantis is optimised for mobile devices and adapts its 5×4 grid to smartphones and tablets. Touch controls remain straightforward, while the Nudge Wild and Colossal Re-Spin mechanics carry over to smaller screens. The underwater artwork remains readable because the transparent reels use relatively simple symbol designs. Loading performance ultimately depends on your device, internet connection and casino platform.
Pros & Cons of Secrets of Atlantis
Pros
- 97.07% RTP is unusually strong for a NetEnt video slot.
- All 40 paylines can produce combinations in both directions.
- Nudge Wilds can expand into full-reel Wild coverage.
- Colossal Symbol Re-Spins create a distinctive alternative to Free Spins.
Cons
- There is no traditional Free Spins feature.
- The 1,600x maximum payout is modest by modern standards.
- Colossal Re-Spins cannot be purchased directly.
- The feature trigger probability is not publicly disclosed.
Is Secrets of Atlantis Worth Your Time & Money?
Secrets of Atlantis earns 8.2/10 for its 97.07% RTP, Win Both Ways paylines and distinctive Colossal Symbol mechanic. It is best suited to players who prefer medium volatility and reel-based modifiers rather than elaborate Free Spins bonuses.
The relatively modest 1,600x ceiling makes Secrets of Atlantis less attractive to players chasing extreme multipliers. However, its high theoretical return and unusual mechanics still give it a clear identity within NetEnt’s catalogue. Players comparing promotions such as 200 free spins no deposit should check the eligible-game list first, as free spins can be restricted to selected slots. Always read the promotion terms before claiming an offer.
Secrets of Atlantis Frequently Asked Questions
NetEnt publishes an RTP of 97.07%. Always confirm the figure displayed in the real-money game’s information screen before playing.
Demo versions exist, but UK-licensed operators must apply the relevant age-verification requirements before providing access to free-to-play gambling games.
NetEnt lists the maximum payout as 1,600x your stake.
No. Secrets of Atlantis does not use a Bonus Buy, its Colossal Symbol Re-Spins are triggered through the Highlight Feature.
Starburst provides another straightforward NetEnt experience built around expanding Wild mechanics, while Spinata Grande also uses oversized symbols. Secrets of Atlantis distinguishes itself through Win Both Ways and its 3×4 Colossal Symbol Re-Spins.
NetEnt does not publish a verified Colossal Re-Spin trigger frequency. The 23.00% hit frequency measures how often a paying result occurs, not how often the Highlight Feature completes.