Under the Sea Demo Mode

Under the Sea is a 1x2Gaming slot where crabs, turtles, and shells pay across 25 lines. The setup is simple: free spins with doubled payouts and a rare Mixed Seafood combo that drops surprise wins. Test the demo on this page or in the Legalbet slots catalogue to see how the mechanics behave without any risk.

96%
Return to player
RTP means Return to Player and describes the theoretical payout ratio of casino games. The higher the RTP, the higher percentage of your bets you can expect to get back in the form of winnings. The RTP in real-money casinos can differ.
90050x
Max win
Medium volatility
Volatility
Volatility, in online gambling, is a term used to assess the risk of losing a bet. In other words, it suggests how rare or often players can expect to win or how big or small they can expect the prizes to be.
Slots
Game type
0,01
Min bet
The lowest amount a player can wager on a specific game. It is also a bonus requirement where you can bet above a certain amount to claim your bonus.
100
Max bet
The rule which indicates the highest amount you can bet on a casino game. It is also a bonus requirement where you can only bet up to a certain amount to claim your bonus.

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Information

Bonus game
Available on mobile
Jackpot
Quickspin
Auotoplay
Demo mode
Game developer 1x2Gaming
Release date 14.08.2023
Last page update November 2025

More games by 1x2Gaming 21

Design And Theme

🖼️ Graphics

Under the Sea looks like an early-2010s 1x2Gaming release: simple 2D animation and bright marine symbols on a dark-blue backdrop. No ships or mermaids here, just shells, crabs, corals, and bubbles rising as the reels stop. The UI is old-school with “mechanical” bet buttons, but everything is clear. The mood is unhurried, like a slow dive along the reef.

🎶 Sound

A drawn-out synth “accordion” carries the soundtrack, aiming for undersea depth but landing a little dated and muddy. Wins and free-spin triggers are the same instrument turned up, which spikes the contrast. After a hundred spins, the loop grates. The mute button is the best upgrade.

Mechanics

🥁 Grid size

5x3

📊 Paylines

25

➕ Bonus game

🤑 Jackpot

💸 Extra bet / Ante Bet

🪂 Fixed multipliers

♻️ Respins

❎ Gamble

Winning Combinations

Before you learn how to play Under the Sea in practice, check the payouts. We converted the paytable values (shown in coins per line) into x-multipliers by dividing by 25 active lines at a 1-coin/line stake. If you change the number of lines, the x-values scale accordingly.

Top symbols:

Symbol

2

3

4

5

Sea shell

x0.32

x1.80

x8

x16

Seahorse

x0.28

x1.60

x6

x14

Jellyfish

x0.28

x1.28

x3

x12

Scallop

x0.24

x0.96

x1.60

x4

Low symbols:

Symbol

3

4

5

Corals

x0.88

x1.60

x3.20

Starfish

x0.80

x1.28

x3.20

A

x0.60

x1.04

x2.80

K

x0.48

x0.96

x2.40

Q

x0.40

x0.80

x1.80

J

x0.40

x0.56

x0.80

Special Symbols

There are three special symbols plus one extra combo that affects balance more than regular lines.

  • Wild (clownfish): substitutes for all symbols except the turtle (Scatter) and the crab (special symbol). Chooses the most valuable outcome when multiple wins are possible. Does not pay on its own, but often helps connect whelk or seahorse lines.
  • Scatter (turtle): pays anywhere: 3 scatters — x7.2, 4 — x12.8, 5 — x40. Also triggers free spins: 5, 10, or 15 spins. All wins in the bonus are doubled, and 3+ scatters during free spins add more spins (retrigger).
  • Crab: pays on active lines like a regular symbol: 3 — x1.2, 4 — x4, 5 — x8.
  • Mixed Seafood: any line of three different sea-produce symbols (crab + scallop + whelk). Pays a fixed x6 of the total bet. Small next to the bonus, but fairly frequent.

Bonus Game

  • Triggered by Scatters.
  • A flat x2 multiplier applies to all wins during free spins.
  • 3+ scatters in the bonus retrigger and add extra spins.
  • Mechanics, symbols, and bets remain the same as in the base game.

RTP, Volatility, Max Win

RTP is 96.8%. Volatility is medium. The provider does not state a clear cap; some aggregators claim up to x1000, while a paytable-based estimate suggests around x800 per spin in the bonus (top symbol full lines on 25 lines, doubled).

Our Verdict

Under the Sea is a calm, retro slot: simple lines, x2 free spins, and an occasional Mixed Seafood payout. It does not try to surprise, which is part of the charm: jump in, spin, catch a bonus, move on. The downside is the fatiguing audio and a modest ceiling. Suits players who want a no-nonsense rhythm without dense rules. If you need pace and progression, look elsewhere.

If you want to stay underwater:

  • Big Bass Bonanza — newer and punchier, with cash fish and levelled multipliers in free spins.
  • Tombstone R.I.P — for those after a far more dynamic mechanic with escalating volatility and brutal multipliers.

Post by:

Andy H
Andy H
Site Manager
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