Payment Methods – Lastly, we understand how important having their preferred payment methods is to players when playing slots for real money.Real Money Slots Bonuses and Promotions – Firmly in the belief that attractive bonuses and promos are all part of playing online slot games, we looked for sites that have the most generous offers.Reputability – In our quest for the best real money online casinos, we checked the year the online casinos were established, their licenses, as well as user reviews in order to ensure reputability.As such, to help maximize potential player winnings, we included online casinos with high RTPs. High RTPs – When playing real money slot games and other casino games, it’s always more appealing when the RTPs are high.We wanted to find real money online casinos that offered a good mix of table games, real money slots games, card games, bingo, and more. Online Casino Games Variety – One of the first things we always look out for is online casino game variety.Ranking Methodology: How We Ranked Casino Sites Best bitcoin and crypto casino – 7BitCasino.Best casino site in UK and Canada – PlayOJO.Best for live dealer real money games – Mansion Casino.Best for payment method selection – InterTops Casino.