WMS derives 70 percent of its revenues from customers in the US. With the introduction of Reel ‘em In, WMS displayed its ingenuity by launching multi-coin and multi-line secondary bonuses.Īs time passed, the company began to come up with other licensed themes, starting with Monopoly, and thus significantly increased its sales as well as profits.

Since the latter stages of the nineteenth century, the themes of the reels of mechanical slots were limited to horseshoes, the Liberty Bell, fruits, card suits, black bars, and stars and bells.