Secrets of Atlantis Slot – Free Demo

Provider: NetEnt
A 97.07% RTP on the label, and 43.1% back after 320 spins at a 1.00 stake. NetEnt skips free spins here entirely: the Mermaid wild nudges to fill a reel, and highlighting reels 2 to 4 merges them into one Colossal reel for a re-spin, which I saw exactly once.

Play Secrets of Atlantis demo

Developed by NetEnt
Game details
Provider NetEnt
Volatility Mid
Max Win Per Spin 1,600× bet
Min Bet 0.20
RTP 97.07%
Reels 5
Paylines / Ways 40
Bonus Buy No
Increasing Multipliers No

Forty lines both ways, and a crab at 0.75x

It's not a Megaways slot. I played 320 spins on it at a stake of 1.00. It is constructed using 5 reels, 4 static rows and 40 fixed paylines that pay both directions, and, fairly volatile, it has a RTP of 97.07%.

Looking through the paytable, I can see that it's ruled by three lower-value symbols. Each of the three pays 0.15x the stake for three on a line, 0.3x for four and 0.75x for five. They are depicted by the jellyfish, sea turtle and crab. In my session, 69 of the 112 paying spins returned less than the 1.00 stake. Better paying are the jewel symbols of the ruby, emerald and sapphire, and the Pearl Clam, the latter being the top symbol and handing you 20 times your stake for a five of a kind combo. Among the jewels, five rubies pay 3.5x the stake, five emeralds 3x and five sapphires 2.5x.

Secrets of Atlantis slot

The Mermaid is the wild. When it lands only partly in view, it nudges up or down until it covers the whole reel. It fills an entire reel and substitutes for all symbols.

Lighting up reels 2, 3 and 4 at once

Initially, there is the Highlight Feature, and to activate the re-spin, you will need to completely highlight reels 2, 3 and 4 at once. Upon doing so, you will be confronted with the following:

Colossal Symbol Re-Spin - Reels 2 through to 4 merge into one reel of 3x4 Colossal symbols. Colossal symbols can land fully or partially on the merged reel and combine with the regular symbols on reels 1 and 5. They re-spin, and if you manage to completely highlight the merged reel again, you will be awarded another re-spin.

The Minty Take: Secrets of Atlantis is a base-game-only release from the supplier. Across my 320 spins I wagered 320.00 and won back 137.80, a 43.1% session return, and the balance never climbed above the 999.65 it started from.

Spin 150 and the one merged reel

Furthermore, the Highlight Feature also runs on every spin. It filled reels 2 to 4 only once in my session, on spin 150, and that Colossal Symbol Re-Spin paid 8.60. Functioning as a small side game, it hands you something additional to watch every time a spin passes by. My largest win was 10.00 on spin 302, and the longest run without a win lasted 10 spins, ending on spin 110. To finish, Secrets of Atlantis is another base-game launch from NetEnt, fairly volatile, and it also arrives with 1,600x max win.