Release Date 
Developer 
Lines 
Features Mermaid by Royal Slot Gaming is a classic slot released in 2018 with five reels, 30 paylines and a maximum multiplier of 1000x. The game uses a compact 15 MB size and a bet range from 0.3 to 1200. Players can open the demo version to play for free and practice before playing for real money.
The main feature is the Free Game sequence, triggered by the Treasure Chest symbol. During this round, a full-reel Mermaid Wild appears and moves one reel to the right after each spin. Every round adds another Mermaid Wild, with up to five rounds available, which shapes the bonus gameplay and changes the reel layout as the feature progresses.
As a free demo slot, Mermaid lets players review the basic structure, payline setup and bonus round mechanics without risk. The format is straightforward, with the special symbols and expanding wild feature forming the core of the game review for anyone looking for a Mermaid slot to play for free.
