Games designed for players that like to make big wagers. A high-roller slot can be any game that you think costs a lot of money to play per-spin. To some players, a $5-per-spin wager is a high-roller bet. To other players, that’s a totally realistic number. How high can these wagers go? The sky is technically the limit. We have reviewed online slot games’s definition. These game do give players something in exchange for their big investment. They offer large jackpots, multiple bonuses, wild symbols, free spins, scatters, and a high payback percentage.