Digital gambling is a gigantic industry. Countless websites offer hundreds of games, but is it really possible to collect any winnings? Scepticism is understandable: there are plenty of unscrupulous providers. However, you can still find a decent game collection with smooth withdrawals. Here are five key criteria to look out for.1. The Reputation of the SiteAn eye-catching website may be created in a week, but reputation must be earned. Top platforms have been operating for many years — some are over a decade old. For example, Zodiac Casino reviewed here has been in business since 2001, which makes it a real veteran. This site is a well-established provider of Microgaming hits.Check expert reviews and customer feedback. Today, this information is a click away. Sadly, some players create accounts without research. Laziness often results in lost money.2. Check the RNGRNG is what determines the outcome of any game, every time. Online casinos do not have human croupiers (with the exception of the Live Dealer mode), so they rely on powerful engines. A random number generator does exactly what the term suggests. It guarantees that all players have equal chances of winning.This system must be audited by monitoring organizations. For example, certification from eCogra proves that the site is not rigged. Reputable casinos have nothing to hide, so you can find descriptions of their Fair Play practices in a special website section.3. Game ProvidersFind out what development brand provides the games. Look for trusted names like Microgaming or Net Ent. The biggest studios ensure smooth gameplay and impeccable graphics. Some of them are also famous for their payouts. For example, progressive Microgaming slots like Mega Vault Millionaire have a gigantic prize fund, so any player can win millions of dollars with one spin.4. Learn about WithdrawalsPopular casinos have flexible payment systems. They accept various methods, from Visa to e-wallets to vouchers. Withdrawal conditions are unique, so check them before making your first deposit. Read the terms and conditions and visit the FAQ section. Will you be able to collect your winnings conveniently?As a rule, casinos have a mandatory pending period (e.g., 48 hours) before a player’s request is processed. This gives them time to cancel the transaction if they decide to use the winnings for more games. Of course, any website is interested in having you play longer. There is nothing devious about the pending window, but it must be clearly specified.Extra Tip: Be Careful with BonusesToday, any casino offers some kind of an incentive or reward to gain new members. You may be offered a spectacular amount from the get-go. Check the wagering requirements for every bonus — withdrawing it may be next to impossible. The multiplier (e.g., x60) tells you how many times the amount must be wagered. It is more important than the size of the bonus.