Atlantis The Forgotten Kingdom

Atlantis The Forgotten Kingdom: Introduction

Atlantis The Forgotten Kingdom is Half Pixel Studios' second slot release, and it wastes no time picking a side on the crowded Atlantis sub-genre — leaning hard into four mermaid characters as its premium symbols rather than the ruins-and-relics approach many competitors take. Whether that character-led design lands with a given player is very much a matter of taste, but the underlying math model behind it holds up well regardless.

Setting And Visual Design

The action plays out on a 5-reel, 243-ways grid surrounded by bubbles, seaweed and drifting fish, with the lost city itself visible in the distance rather than front and centre. Half Pixel gives the wild reel on the left-hand side, plus the free spins and max win potential, prominent billing above the grid, and the four mermaid symbols are rendered in a cartoon, almost manga-influenced style that sets the game apart visually from more photorealistic Atlantis titles.

Symbols And Paytable

Eight regular pay symbols make up the paytable: J through A royals at the low end, and four named mermaid characters — each tied to a distinct role in the Atlantis mythology, such as warrior, adviser, beauty and queen — occupying the premium tier. Five-of-a-kind on the top mermaid symbols pays 3x to 6x the stake, and premium symbols can land not just as standard 1x1 icons but also in 1x2 or 1x3 stacked formations, with the potential to turn wild.

RTP, Volatility And Hit Rate

The game runs on a variable RTP model, with the most generous configuration returning 96.19% — worth checking which version your operator has enabled, since lower-RTP settings do exist. Volatility is rated high, backed by a hit frequency of 39.24%, a genuinely strong rate for a high-volatility slot that keeps the reels feeling active even as bigger swings play out in the background.

Max Win And Stakes

Atlantis The Forgotten Kingdom caps out at 7,200x the stake, worth roughly €218,700 at standard stake conversion, a genuinely serious ceiling for a game with such an accessible betting range of 0.20 to 30 per spin.

A Divisive But Deliberate Design Choice

The manga-inspired mermaid cast is the game's most talked-about element, and reactions to it genuinely split down personal-preference lines — some players will see harmless fun in the character design, others may find it a step too far. Whichever side of that line you land on, it's worth judging separately from the underlying math model, which holds up as one of the stronger builds in Half Pixel Studios' still-young catalogue.

Verdict

Between its character-driven mermaid cast, a strong 39.24% hit rate for a high-volatility build, and a max win pushing well into five figures relative to stake, Atlantis The Forgotten Kingdom has more depth than its crowded sub-genre might suggest. Try the free demo at johnessyslots to see whether the mermaid-led design and full-reel wild features win you over before playing for real.