Slot machines are usually the most popular games in online casinos. They’re easy to play and offer gamblers really big wins and even huge progressive jackpots that reach millions of dollars. This guide will tell you about the best online slot games to play in 2020 and explain what slot machine games provide top winning opportunities.

Best online slot games to play for money and free in 2020

The list of top slot machines that were the most popular among gamblers in the year 2020 includes:

  • Book Of Dead;
  • Starburst;
  • Mega Moolah;
  • Fire Joker;
  • Gonzo’s Quest;
  • Cleopatra;
  • Thunderstruck II.

There are several reasons why a certain game may become so popular, that it’ll attract millions of players. In case of Mega Moolah it’s probably a huge progressive jackpot that increases the more gamblers make real-money bets in this game. This prize may reach millions of dollars. Mega Moolah progressive jackpot is the biggest prize a player won in online slot machines ever.

A unique special feature is another reason why a certain machine can hit the list of the best online slot games. In The Book Of Dead it’s a special expanding symbol that is randomly chosen before the free spins round. It significantly increases your chances to get really big wins.

Many gamblers choose slots because of unique symbols. For example, Starburst machines have Expanding Wild, which covers the whole reel where it lands. It helps player to get more winning combinations per spin.

Of course, every game should just be fun and entertaining to engage gamblers for a long time. It can be achieved by interesting plot, great design, high graphics quality etc.

Best online slot games to win real money

Some slot machines pay out better than others. There are several reasons for that. It includes:

  1. High Return to Player rate, which means the house gets only a small part of money that gamblers use in play.
  2. Big reward for winning combinations. It’s a mandatory attribute of the best online slot games.
  3. Great bonuses, free spins rounds and gamble games.
  4. A variety of betting options and the ability to choose the number of active lines.

One more thing that affects winning probability is volatility. The higher it is, the rarer are your wins. At the same time, slot machines with high volatility usually offer really big prizes.

Note that you can also play the best free online casino slot games without real bets. Just gamble in demo and enjoy spinning the reels. You won’t win real prizes, but you’ll definitely have fun. It’s also a great way to practice before playing for money.