4 Inventions

The Four Inventions Slot: Comprehensive Data Analysis

Core Game Specifications

Attribute	Value
Developer	Eurasian Gaming
Release Date	2020-09-11
Theme	Ancient Chinese inventions, Asian, Science & Technology
Layout	5×3
Paylines	25
Bet Range	$0.01–$3 per spin
Core Mechanics	Free Spins with four reel sets, Gamble feature, Wild and Scatter symbols, Bonus Game
Technology	HTML5, JavaScript
Mobile Support	Yes, fully responsive

Mathematical & Payout Model

Symbols & Paytable Hierarchy

Tier	Symbol(s)	Function & Value
Low Tier	9, 10, J, Q, K, A	Provides small, frequent wins to maintain gameplay.
High Tier	Compass, Gunpowder, Papermaking, Printing Press	Highest paying symbols. Top hits available with full combinations.
Wild	Yin Yang wild	Acts as a substitute / feature trigger per game rules.
Scatter	Four inventions scatter	Triggers free spins / bonus round when enough appear.

The Four Inventions Bonus Features Mechanics

Feature	Trigger	Initial Award	Core Mechanic	Enhancement/Retrigger
Free Spins with four reel sets	Landing three scatter symbols	4 spins per reel set	Each of four reel sets spins; wins add spins to that set	200× total bet if all four sets win simultaneously

Frequently Asked Questions (FAQ)

What is the RTP of The Four Inventions?	The RTP is 96%.
How many paylines does the game have?	The game has 25 fixed paylines.
What is the maximum win multiplier?	The highest win per line is 32× your total bet.
How do I trigger the free spins feature?	By landing three scatter symbols anywhere on the reels.
What does the gamble feature do?	After a win, you can gamble by guessing red or black to double your win, up to five times.
Can free spins be retriggered?	No, the free spins feature cannot be retriggered.
What are the high‑value symbols?	They are the four inventions: Compass, Gunpowder, Papermaking, and Printing Press.
Is the game available on mobile?	Yes, it is built in HTML5 and fully mobile‑compatible.

The Four Inventions Performance Summary: Strengths vs. Weaknesses