Reasons for this vary among players, attracting with exciting simplistic gameplay. More free gambling machines with exciting gameplay are available in land-based or online casinos, but their popularity remains over a century later. Later in 1907, a Chicago-based company modified the Liberty Bell, changing symbols to lemons, plums, grapes, or cherries, and its first machine was born. Why Are Online Fruit Machines So Attractive?įree fruit machine games date back to the 1800s when Charles Fey invented the Liberty Bell slot machine, featuring a 50 cents jackpot, 3 reels, and 5 symbols: Horseshoes, Hearts, Diamonds, A golden Liberty Bell, and Spades.