Free demo, RTP, volatility and bonus features of the Secrets of Atlantis slot by NetEnt.
Dive into the sunken city in Secrets of Atlantis. This 5-reel, 40-line slot features Nudge Wilds and a Colossal Symbols Re-spin feature, offering a serene underwater journey filled with hidden treasures and aquatic wonders.
Secrets of Atlantis is an online slot from NetEnt. NetEnt is a pioneer in the iGaming industry, known for producing iconic titles like Starburst and Gonzo's Quest. The studio focuses on high-quality graphics, creative game mechanics, and innovative bonus features that have set industry standards for decades.
You can open Secrets of Atlantis here as a no-registration browser demo and study the buttons, the paytable and the feature triggers at your own pace. The free round is useful for judging speed and readability before betting anything.
07%, medium volatility and a stated maximum win of 1,600x. The recorded release date is August 24, 2016. The return figure applies across millions of simulated spins. So short sessions can look very different. Volatility describes the swing profile. Meanwhile, the stated maximum win is the limit the game can pay, not a likely result.
Gameplay tags associated with Secrets of Atlantis include Sticky Wilds. Use the tags as a quick map of the mechanics, then read the rules below for the recorded feature behaviour. Symbol values and trigger requirements should always be confirmed in the paytable of Secrets of Atlantis itself.
A practical way to test the demo is to keep the stake steady for fifty spins, then repeat at a different level. Check the info screen before you start and after any change to a setting. So the active paylines and bet size are never a guess.
Longer sessions make it clearer how often Secrets of Atlantis pays in the base game compared with its feature rounds.
Because configuration varies by casino, jurisdiction and software version, always confirm RTP, stake limits and feature access in the client you use. Free-play results do not carry over to real money. Fix a budget first, treat any win as a bonus rather than income, and seek help if play stops feeling like entertainment.
Secrets of Atlantis is a 5-reel, 4-row, 40-line (fixed) video slot with a Win Both Ways mechanic. Features include Highlighted reels, Colossal Symbols Re-spins, and Nudge Wilds. During any spin, reels 2, 3, and 4 can be highlighted. If all three are fully highlighted, a Colossal Symbols Re-spin is triggered.
During the Re-spin, a 3x4 symbol block appears on the middle reels. The Mermaid is the Nudge Wild. If only part of the Mermaid appears, it nudges up or down to cover the entire reel.
How to play the Secrets of Atlantis demo: open the game, wait for the interface to finish loading and review the paytable or help menu before starting. Choose a comfortable virtual stake with the on-screen controls, then begin a round and let the result complete before changing settings. The demo uses play credits.
But the controls and feature sequence are designed to mirror the corresponding game experience.
For this slot format, set the virtual stake and press spin. Winning combinations are evaluated according to the paytable after the reels or grid settle. Check whether the game uses paylines, ways, clusters or another win system. That is because this determines how matching symbols connect. Wilds, scatters and bonus symbols may follow separate rules.
The mechanics recorded for this title are Sticky Wilds. Sticky Wilds remain fixed for the period defined by the relevant feature. So note exactly when they appear and when they reset. Feature labels summarise the catalogue entry. But the game screen determines the exact trigger, duration and payout calculation.
07% RTP, medium volatility and a maximum win of 1,600x. RTP is calculated across a very large number of rounds and cannot forecast a short demo session. Volatility describes the intended risk pattern: higher settings generally mean outcomes may be less frequent and more uneven.
A maximum win is a ceiling and should never be treated as a likely target.
During testing, watch the stake shown before every round, the balance change after settlement, the symbols or events that trigger features and any multiplier that remains active. Try the base game first instead of immediately selecting an optional shortcut.
If autoplay is available, set a limited number of rounds and stop conditions so the session remains easy to follow.
Availability, RTP and feature settings may differ between operators or countries. Always use the paytable and help menu in the exact version being played. Real-money gambling involves financial risk. Use fixed limits, take breaks and never increase a stake to recover a loss.
Last checked: 2026-09-11
Free demo mode: this game runs with play money only — no real-money wagering and no winnings.
18+ only. Gambling involves risk — play responsibly, set deposit and time limits, and never play with money you cannot afford to lose.
Secrets of Atlantis is an online slot developed by NetEnt, released in 2016. It is built around sticky_wilds. Use the free demo on this page to test the reels, bet steps and feature triggers with play money first.
On paper, Secrets of Atlantis offers a return to player (RTP) of 97.07%, medium volatility and a maximum win of 1,600x. In practice that means hit frequency and payout size stay in balance. That suits most session lengths. RTP is a long-run average across millions of spins, not a promise for a single session.
Play Secrets of Atlantis for free here to compare it with other NetEnt titles, then use the casino list on CasinoCheck to find a site that carries the game for real money. Bonus terms, payout speed and country availability differ between operators, so check the current conditions before you sign up.
Dive into the sunken city in Secrets of Atlantis. This 5-reel, 40-line slot features Nudge Wilds and a Colossal Symbols Re-spin feature, offering a serene underwater journey filled with hidden treasures and aquatic wonders.
Secrets of Atlantis is an online slot from NetEnt. NetEnt is a pioneer in the iGaming industry, known for producing iconic titles like Starburst and Gonzo's Quest. The studio focuses on high-quality graphics, creative game mechanics, and innovative bonus features that have set industry standards for decades.
You can open Secrets of Atlantis here as a no-registration browser demo and study the buttons, the paytable and the feature triggers at your own pace. The free round is useful for judging speed and readability before betting anything.
07%, medium volatility and a stated maximum win of 1,600x. The recorded release date is August 24, 2016. The return figure applies across millions of simulated spins. So short sessions can look very different. Volatility describes the swing profile. Meanwhile, the stated maximum win is the limit the game can pay, not a likely result.
Gameplay tags associated with Secrets of Atlantis include Sticky Wilds. Use the tags as a quick map of the mechanics, then read the rules below for the recorded feature behaviour. Symbol values and trigger requirements should always be confirmed in the paytable of Secrets of Atlantis itself.
A practical way to test the demo is to keep the stake steady for fifty spins, then repeat at a different level. Check the info screen before you start and after any change to a setting. So the active paylines and bet size are never a guess.
Longer sessions make it clearer how often Secrets of Atlantis pays in the base game compared with its feature rounds.
Because configuration varies by casino, jurisdiction and software version, always confirm RTP, stake limits and feature access in the client you use. Free-play results do not carry over to real money. Fix a budget first, treat any win as a bonus rather than income, and seek help if play stops feeling like entertainment.
Secrets of Atlantis is a 5-reel, 4-row, 40-line (fixed) video slot with a Win Both Ways mechanic. Features include Highlighted reels, Colossal Symbols Re-spins, and Nudge Wilds. During any spin, reels 2, 3, and 4 can be highlighted. If all three are fully highlighted, a Colossal Symbols Re-spin is triggered.
During the Re-spin, a 3x4 symbol block appears on the middle reels. The Mermaid is the Nudge Wild. If only part of the Mermaid appears, it nudges up or down to cover the entire reel.
How to play the Secrets of Atlantis demo: open the game, wait for the interface to finish loading and review the paytable or help menu before starting. Choose a comfortable virtual stake with the on-screen controls, then begin a round and let the result complete before changing settings. The demo uses play credits.
But the controls and feature sequence are designed to mirror the corresponding game experience.
For this slot format, set the virtual stake and press spin. Winning combinations are evaluated according to the paytable after the reels or grid settle. Check whether the game uses paylines, ways, clusters or another win system. That is because this determines how matching symbols connect. Wilds, scatters and bonus symbols may follow separate rules.
The mechanics recorded for this title are Sticky Wilds. Sticky Wilds remain fixed for the period defined by the relevant feature. So note exactly when they appear and when they reset. Feature labels summarise the catalogue entry. But the game screen determines the exact trigger, duration and payout calculation.
07% RTP, medium volatility and a maximum win of 1,600x. RTP is calculated across a very large number of rounds and cannot forecast a short demo session. Volatility describes the intended risk pattern: higher settings generally mean outcomes may be less frequent and more uneven.
A maximum win is a ceiling and should never be treated as a likely target.
During testing, watch the stake shown before every round, the balance change after settlement, the symbols or events that trigger features and any multiplier that remains active. Try the base game first instead of immediately selecting an optional shortcut.
If autoplay is available, set a limited number of rounds and stop conditions so the session remains easy to follow.
Availability, RTP and feature settings may differ between operators or countries. Always use the paytable and help menu in the exact version being played. Real-money gambling involves financial risk. Use fixed limits, take breaks and never increase a stake to recover a loss.
Yes. The demo on this page runs Secrets of Atlantis with play money — no deposit, no account and no download. Demo balances have no cash value and cannot be withdrawn.
Secrets of Atlantis was developed by NetEnt. You can browse the studio's other titles from the provider page linked at the top of this page.
NetEnt publishes an RTP of 97.07% for Secrets of Atlantis. That figure is a theoretical long-run average; individual sessions can land far above or below it. Some operators run configurable RTP versions, so check the game info screen in the casino you play at.
Secrets of Atlantis is rated medium volatility, which means hit frequency and payout size stay in balance. That suits most session lengths.
The win cap for Secrets of Atlantis is 1,600x. Reaching it usually requires the top feature combination, so treat it as a ceiling rather than an expected result.
Secrets of Atlantis uses sticky_wilds. The demo above is the quickest way to see how often each feature triggers.
Yes. Secrets of Atlantis runs in the mobile browser on iOS and Android — the demo on this page adapts to portrait screens, and no app install is needed.
All NetEnt slots and free demos