Underwater slot game art: symbols, palette and a prompt

Underwater slots split into two camps: the bright tropical reef of smiling fish and treasure chests, and the deep sea of wrecks and monsters. Players know both on sight, and the reef side is crowded with clownfish and seashell sets that blur together in a lobby row.
The decision that separates a set is depth. Sunlit shallows, a mid water reef and the black floor of the abyss each have their own light, and the deeper the scene, the more of that light has to come from the things living in it. Pick the depth first, decide what glows, then cast only what would survive down there.
The underwater symbol set
| Role | Symbol | Why it works on the reels |
|---|---|---|
| Wild | Kraken eye | The monster seen only in part. One huge eye fills a square cell, reads at any size and keeps the kraken in the game without a whole creature cropped to nothing. |
| Scatter | Sunken ship bell | A hard bell silhouette in tarnished brass, made by hand and long dead, so it never reads as one of the living high pays. |
| High 1 | Deep sea diver in a brass helmet | The one human in the set, and the mascot. A round helmet with porthole glass reads from across a lobby. |
| High 2 | Pearl oyster | An open shell with one bright pearl: a single point of light that holds up at reel size. |
| High 3 | Coral trident | The one tall, pointed shape, breaking up a set of round shells, eyes and helmets. |
| High 4 | Lantern fish | The living light. Its lure glows teal, so the high tier carries the bonus colour before the bonus arrives. |
Low tier. Card ranks cut from barnacled brass or pale nacre, matt and two tones. Keep glow off the low tier entirely: in a dark set, anything that glows reads as a top pay.
The mascot
Deep sea diver in a brass helmet. A diver has a reason to be on the wreck, and a helmet that shows feeling through posture alone: a lean, a lifted lamp, a slow wave. He stands on the silt beside the reels and gives every other object its scale.
Other picks. Sea witch in a kelp crown. Merfolk guardian with a pearl spear. Whichever you choose, list it first in the high tier, because the mascot takes a high-tier slot rather than adding one.
Colour palette
| Colour | Hex | Where it goes |
|---|---|---|
| Abyss navy | #0B1A2E | The water and the reel window backing. Most of the frame is this colour. |
| Bioluminescent teal | #2FD3C0 | Living things only: the lantern fish lure, the kelp edges and the whole wreck in the bonus. |
| Tarnished brass | #9A7B3F | The diver's helmet, the bell, the cabinet and the button rims. |
| Nacre white | #E6E1D3 | Pearl, shell and the card ranks, the brightest value on the reels after teal. |
| Kelp olive | #3E4A2A | Weed, silt and hull timber, so the wreck does not go flat navy. |
Backgrounds: base game and bonus
Base game. Look along a crushed hull lying away from the camera into black water, with one shaft of light falling from above onto the deck. The reels sit in the gap where the hull split.
Bonus state. The same wreck when the dark answers: bioluminescence runs the length of the hull, the water turns from black to lit teal and the shaft from above widens through the stirred silt.
Cabinet, title and win art
Cabinet and UI. Tarnished brass and nacre for the cabinet, crusted at the edges with a few large barnacles rather than fine texture. Spin and bet buttons are brass porthole rims with a glass face, not chrome.
Title lettering. Riveted brass capitals with green patina in the recesses. Keep the letter faces clear of encrustation so the title still reads at lobby tile size.
Win celebration. Rising strings of air and flakes of broken shell, with silt clouds lifting off the deck, rather than coins.
What to avoid
- A tropical reef palette on a deep wreck. Coral pink and sunny cyan belong to the shallows, and on the sea floor they make the set look like a pool toy.
- Glow on everything. If the card ranks, the frame and the water all glow teal, the lantern fish and the bonus state have nothing left to change.
- Showing the whole kraken. A full monster squeezed into one cell reads as a tangle of tentacles; one eye or one arm keeps it huge.
Well-known underwater slots
- Release the Kraken (Pragmatic Play). A deep sea set with the kraken as its headline creature.
- Razor Shark (Push Gaming). A shark led set built around stacks of mystery symbols.
A prompt for an underwater slot
Paste these fields into the studio. Only the game name and theme are required; the rest pins down what the set would otherwise deduce.
- Game name
- Krakens Depths
- Theme
- A crushed shipwreck on the black sea floor, where a deep sea diver in a brass helmet picks through the wreck. A pearl oyster, a coral trident and a lantern fish glow in the cold dark water. A broken mast still stands upright in the silt, an anchor lies flat where it fell, kelp ribbons hang up into the dark, a corroded sextant rests half buried, and a riveted name plate is fixed to the hull. In its bonus state the dark answers: bioluminescence runs the length of the wreck, the water turns from black to lit teal, and the shaft from above widens through the disturbed silt. Silt clouds lift off the deck, and strings of air and broken shell rise through the cold water.
- Palette
- abyss navy, bioluminescent teal, tarnished brass
- Style
- Luxury dark fantasy
- Wild
- kraken eye
- Scatter
- sunken ship bell
- High tier
- deep sea diver in a brass helmet, pearl oyster, coral trident, lantern fish
One prompt returns the whole set: every symbol, both backgrounds, the cabinet, the title, the mascot and the UI kit, as layered PNGs. Start an underwater slot in the studio, or read how to write a slot art prompt first.
Questions
- What symbols are used in underwater slots?
- Most underwater slots use a sea creature, a trident or a treasure chest as the Wild, a pearl, shell or ship bell as the Scatter, sharks, octopuses, mermaids and divers as high pays, and card ranks or small fish as low pays.
- What colours suit an underwater slot?
- A deep sea set works on dark navy with one glow colour, such as teal, kept for living things. A reef set uses turquoise and coral, but still needs one warm metal like brass for the Wild and high tier so the top pays stand out from the water.
- How do I make an ocean slot look different from the rest?
- Choose a depth and its light. A black sea floor lit only by bioluminescence looks nothing like a sunny reef, even with the same shells on the reels, and it gives the bonus an obvious change: the dark lights up.



