Skip to content

Giveaways Store Bonuses

Mermaid’s Diamond slot: free demo, RTP and max win

A slot by Play'n GO

Mermaids Diamond is a Play'n Go slot on a 3x4 layout with 720 ways to win, released in September 2017. It runs at a 94.45% RTP with medium volatility. Its max win is capped…

Studio Play'n GO 446 games on Velatonmies

Award-winning slot game developer

Player rating No player reviews yet Be the first to rate it

Tested by

Mermaid’s Diamond slot cover
40x deposit in 7 days, max €50 bet counted, slots 100% / live 20%

Player reviews of Mermaid’s Diamond

Scores come from signed-in members who have played the game, one review each, and every rating counts towards the average.

Review Mermaid’s Diamond

+20 points once published

+20points once publishedApproved submissions only. A rejected one earns nothing.

Your ratings
Gameplay & theme
Graphics & sound
Win frequency & payouts
Bonus rounds & free spins

Already a member? , it takes one click, and a published review earns points.

Where to play Mermaid’s Diamond in September 2026

The casinos at the top of our list right now, each one opened, funded and cashed out in our own testing.
New

Betpanda.io

4.0/5
Welcome offer 100% up to 1 BTC Bounty bonus: clear 40x first, paid as cash
Min deposit
€10 or crypto equivalent
Withdrawal
Instant to 5 min (crypto); on-chain confirmation adds 10-60 min
Play now Betpanda.io review
40x deposit in 7 days, max €50 bet counted, slots 100% / live 20%
1

Thunderpick

4.0/5
Welcome offer Esports bonus at 10x, casino bonus at 40x The two offers are not the same deal
Min deposit
€20 for the casino offer, about €19.30 for esports; card purchases from $50
Withdrawal
Instant, no internal fees
+1
Play now Thunderpick review
The esports welcome bonus carries 10x wagering on deposit plus bonus with a minimum deposit of about €19.30. The casino welcome bonus carries 40x wagering with a €20 minimum deposit. Thunderpick may apply a minimum 5x wagering on deposits where it suspects the account is being used to move funds rather than to play.
1

Roobet

4.0/5
Welcome offer RooWards rakeback with no wagering Ongoing rewards instead of a deposit match
Min deposit
No fixed minimum; promotions need about $10
Withdrawal
Crypto in about an hour
Play now Roobet review
RooWards is a rakeback programme paid on play volume and carries no wagering requirement. Where a welcome offer is available it runs at 40x wagering. Promotions generally require a deposit of about $10 equivalent.

Mermaids Diamond is a Play’n Go slot on a 3×4 layout with 720 ways to win, released in September 2017. It runs at a 94.45% RTP with medium volatility. Its max win is capped at 5,000x the stake.

More from this studio

Exclusive offer

Betpanda.io

100% up to 1 BTC

Bounty bonus: clear 40x first, paid as cash

  • 40x deposit, within 7 days wagering
  • min €10 or crypto equivalent
Play now Read review

40x deposit in 7 days, max €50 bet counted, slots 100% / live 20%