Popular slot manufacturer IGT created the Megabucks game in 1986. This was the world’s first slot machine that offered a top prize that increased over time as players on a network of machines placed wagers on the game. Called progressive slots, these games shave tiny amounts off each wager and place these money amounts into a common pool. When a player spins a specific combination of reel symbols, this prize money is released all at once. These games are a relatively new phenomenon, considering that slots have been around for more than a century. They are among the most popular games at any casino, land-based or online, because of the obvious appeal of those ever-increasing jackpots. Progressive slots can be linked locally, across multiple casino sites, or even across multiple casinos around the world.