Coral Island

Coral Island Slot: Comprehensive Data Analysis

Core Game Specifications

Attribute	Value
Developer	Amusnet Interactive
Release Date	2017-07-25
Theme	Underwater, Marine life, Coral reef
Layout	5×3
Paylines	10
Bet Range	0.01–1000 coins per spin
Core Mechanics	Free spins with 3× multiplier, Retriggerable free spins, Wild symbol doubles wins, Four mystery progressive jackpots, Gamble (double or nothing) feature
Technology	HTML5 and JavaScript
Availability	Desktop and mobile

Mathematical & Payout Model

Symbols & Paytable Hierarchy

Tier	Symbol(s)	Function & Value
Low Tier	9, 10, J, Q	Provides small, frequent wins to maintain gameplay.
Mid Tier	K, A, Fish, Group of Fish, Seahorse, Starfish, Turtle	Thematic items offering moderate payouts.
High Tier	Wild (Dolphin), Scatter (Island)	Highest paying symbols. Top hits available with full combinations.
Wild	Dolphin	Acts as a substitute / feature trigger per game rules.
Scatter	Island	Triggers free spins / bonus round when enough appear.

Coral Island Bonus Features Mechanics

Feature	Trigger	Initial Award	Core Mechanic	Enhancement/Retrigger
Free Spins with Multiplier	Three or more scatter symbols	15 free spins	All wins during free spins are multiplied by 3	Free spins can be retriggered
Mystery Progressive Jackpots	Randomly after any spin		Pick cards to match three suits to win one of four jackpots
Gamble Feature	After any win		Guess card color to double or lose win

Frequently Asked Questions (FAQ)

How many paylines does Coral Island have?	The game has 10 fixed paylines.
What is the RTP of Coral Island?	The return to player percentage is 96.22%.
What is the volatility level?	The volatility is medium‑high.
How do free spins work?	Landing three or more island scatters awards 15 free spins with a 3× multiplier and they can be retriggered.
What does the wild symbol do?	The dolphin wild substitutes for other symbols and doubles any win it helps form.
What are the mystery jackpots?	Four progressive jackpots can trigger randomly; players pick cards to match three suits to win one.
Can I gamble my wins?	Yes. After any win you can gamble by guessing the color of a card to double or lose the win.
What is the maximum win multiplier?	The maximum win is 10000x your bet.

Coral Island Performance Summary: Strengths vs. Weaknesses