Free demo & player guide
Mermaid's Diamond
No sign-up · no deposit · full screen available
Free slot demo · player guide
Mermaid's Diamond
Make waves in this deep-sea slot
18+ · free play · no account or deposit
Game details checked 1 Oct 2026How we check games
60-second guide
What matters at a glance
Free play
Play Mermaid's Diamond here
Open the game above to check its pace, controls and features. Free play stays on SlotsCollector.
Game overview
What is Mermaid's Diamond?
Swim among the squid and rays to scour the sea for jewels like rubies, emeralds and especially valuable diamonds – the mermaid's favourite baubles! You win when matching symbols appear on adjacent reels, starting either from the rightmost or the leftmost reel. This gives you 720 watery ways to win on each spin! The mermaid serves as a wild symbol. Whenever two or more mermaid symbols appear on the same reel, she stretches out her fishtail and covers the entire reel to help you win more. Poseidon may wield his mighty trident to randomly create extra wild symbols on any spin. When five treasure chest symbols appear anywhere on the game grid, you can unlock a chosen chest to reveal up to 25 free spins. Keep the faith if only four chests appear; divine intervention by Poseidon may help to magically generate the fifth chest that gives you Free Spins. Collect five diamond symbols on your free spins to summon the sea god's help in generating special Trident Wilds. Extend your original free-spin sequence by three or more free spins when you uncover three or more chests on any free spin. Follow the mermaid's song and make waves in this undersea slot.
How it plays
How the game is set up
Make waves in this deep-sea slot
Details in progress
More gameplay details are being checked
Use the available facts and free demo on this page while we confirm the remaining mechanics.
Before you play
Does Mermaid's Diamond match what you want?
Judge the format and features first. Theme alone tells you very little about how a game feels.
What this game offers
- Video Slot format from Play’n GO
- MEDIUM volatility
What to check first
- This page lists RTP at 96.5%; confirm it in the version you open.
- Casino stake limits and feature settings may differ from the free-play version.
- Free play shows the mechanics, but it cannot predict a future result.
Quick answers
Mermaid's Diamond FAQ
Clear answers based on the game information and demo status available today.
Can I play Mermaid's Diamond for free?
Yes. Select “Play free demo” to open Mermaid's Diamond on this page without an account or deposit.
What type of game is Mermaid's Diamond?
Mermaid's Diamond is listed as a Video Slot from Play’n GO. Make waves in this deep-sea slot
What is the RTP of Mermaid's Diamond?
The RTP shown for Mermaid's Diamond is 96.5%. A casino may offer a different configuration, so confirm the value in the in-game information screen.
Can I play for real money here?
No. SlotsCollector provides game information and free demos only; it does not accept bets or deposits.
Game facts
Mermaid's Diamond numbers and features
These are the details currently confirmed for this game. Check the in-game information before using real money.
Payouts & risk
- RTP
- 96.5%
- Volatility
- MEDIUM
- Maximum win
- 5,000×
- Bet range
- 0.2 – 100
Reels & wins
- Reel layout
- Video Slot - 5 Reels
- Paylines
- 1
Release & devices
- Release date
- 19 Sept 2017
- Platforms
- Desktop, Mobile
- Theme
- Fantasy, Jewels
More to play
More games from Play’n GO
Check real-money availability
This game may be available to play for real money at our partner sites. Availability varies by location.
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