First things first, slots are one of the casinos’ regulars. They witness large daily traffic as they are easy to understand and can be played in isolation. So, the house edge of slot games is much higher, and they can contribute more frequently towards releasing bonuses. In simple words, slot games generate more profits than other games like Roulette or Blackjack and can give away more percentage of money on bonuses and cashback through playthrough and wagering.