Today, slot machines generate over 70% of all casino revenue worldwide, dominating the floors with massive screens and loud music.
Tracing the history of these machines reveals exactly how the modern gambling industry was built.
Before the Liberty Bell, gambling machines required a bartender to manually hand over a prize, like a free beer or a cigar.
Fey’s brilliant design used three physical metal reels painted with symbols like horseshoes, diamonds, spades, and a cracked Liberty Bell.
Instead of physical reels, the Fortune Coin machine used a modified 19-inch Sony television to display digital, computer-generated symbols.
Video slots allowed developers to break free from the physical limitations of metal reels, adding multiple paylines and complex bonus rounds.
| Machine Type | Visuals | Player Interaction |
|---|---|---|
| Electromechanical (Bally, 1963) | Physical reels with electric hoppers | First machines to offer massive multi-coin payouts |
| Modern Video Slot (2000s+) | High-definition digital animations | Touch screens and interactive bonus games |
Charles Fey’s simple mechanical invention laid the foundation for a multi-billion dollar global entertainment empire.
