Best Online Slots of 2021

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Introduction

Slot machines occupied a lot of place at casinos at all times. They always draw the attention of casino visitors. Today, we already live in the twenty-first century and have an opportunity to simplify our lives. Every gambler can afford to relax a little: there is no need to go for excitement anymore. Divertissement is available at arm’s length. The appearance of the machines remains the same as many years earlier. Rules are also the same. Only the mode of use has changed. Now they are called “slots” and are available online. The process of controlling such systems has been simplified many times. Now, it is enough to go to the site of a gaming club and start the game that you like with one click of the button.

Best Online Slots of 2021
Lil Devil
5.0/5
Starburst
5.0/5
Razor Shark
5.0/5
Reactoonz
5.0/5
Jammin Jars
5.0/5
Dead or Alive
5.0/5
Book of Dead
5.0/5
Tombstone
5.0/5
Deadwood
5.0/5
Gonzo’s Quest
5.0/5
Gonzo’s Quest

Our Top 10 List

The regarded entertainment remains the most popular at online casinos. Thousands of gamblers visit gambling platforms daily to try their luck and win big money. Thus, we made a list of the best online casino slots below for you to save your time and find a favorite one.

1. Reactoonz (Play’n Go)

Play’N Go has created an exciting and unique slot machine called Reactoonz with an original design, interesting technical structure, and funny theme. Several features of the slot can be noted:

  • 7×7 playing field for 49 cells;
  • there are no paylines, and winnings are formed by creating clusters;
  • the maximum win is up to x750 bets;
  • a long cycle and a high level of volatility;
  • special options and additional functions;
  • a return percentage is 96%.

A player should have 5 identical symbols on the screen of a PC or tablet to form winning combinations.

2. Book of Dead (Play’n Go)

Book of Dead was developed by Play’n Go and first released in January 2014. Still, the game hasn’t lost its popularity even now. The software provider did a great job creating this adventure game. It has the following peculiarities:

  • The slot has a 5×3 playing field with 5 reels, 10 paylines, and some exciting bonuses.
  • Its RTP is 96.21%.
  • The level of volatility is high.
  • The game is optimized for portable gadgets.
  • Its maximum winning is about 670,000 dollars.
  • The highlight of the entertainment is a free spin bonus game.

Rich Wilde is the main character. He is sent on a mission to Egypt to discover some ancient artifacts. The graphics are pretty good. Corresponding symbols and images inspired by ancient Egypt are seen in the background.

3. Dead or Alive (NetEnt)

The game is recognized as one of the best online slots. It is a 5-reel game with 9 paylines. It has a 96.82% return percentage. The main features include free spins, a multiplier, Scatter and Wild symbols. There is a “Fast spin” mode, which allows playing Dead or Alive in an automatic mode.Travel to the wild west with Dead or Alive produced by NetEnt. After opening the slot, you will find yourself in one of the cities of the Wild West, over which thunderclouds are hanging. This is exactly a playing field, on the sides of which a gambler will see a lantern swinging from the wind and a windmill. On the technical side, Dead or Alive is a 5-reel, 9-payline slot, in which you have to catch inveterate criminals known back in the 20th century. The range of rates provided here is from 0.09 to 18 dollars per spin.

4. Jammin Jars (Push Gaming)

Gamblers can play the slot by Push Gaming in demo mode, completely free of charge. Its RTP is 96.8%. A playing field comprises 8 spinning reels and “Cluster Pays” pay lines. It has either Scatter or Wild symbols, a multiplier, offers free spins. Playing in an automatic mode is available. Note that there is no “Fast Spin” mode.

Jammin Jars is a new fruit-themed slot machine produced by Push Gaming. A playing field consists of 8×8 symbols. This allows collecting winning combinations more often. The game uses clusters but not lines to form winnings. This is another slot feature. Six juicy berries and fruits will help gamblers receive prizes. A Wild symbol (a jar with a jam) replaces the missing symbols.

5. Razor Shark (Push Gaming)

The developers of the slot machine took a cartoon theme as the basis for game creation. A shark is the main character. Razor Shark can produce large multiplication both in free spins and in a regular game. The game consists of 9 symbols, including Bonus and Wild options. For example, at a rate of 10 dollars with a played line of Wild symbols, x50 multiplication is awarded. Considering that the game has 20 pay lines, gamblers can count on a big win. Slot characteristics:

  • 5 reels, 4 rows, 20 playing lines without the possibility of changes.
  • Free spins and additional features in the regular game.
  • A minimum rate is 0,5 dollars; the maximum is 5,000 dollars. A spin value can vary depending on the casino.

Mystical rows can drop out during a regular game. They can take all the reels under the best circumstances. As a result of each spin, mystical rows turn into random symbols.

6. Tombstone (Nolimit City)

It is considered one of the best online slots games. Tombstone appeared at online casinos in 2019. It became one of the most visited slots in dozens of casinos during the first weeks after its release.

The slot is a non-standard field of five reels: three central reels have three symbols in a row, and the side ones have only two. The slot uses fixed pay lines in the amount of 108 pieces. The range of bets is from $0.10 to $100 per spin.

To get a win, a gambler has to collect combinations from left to right, making continuous lines of the same symbols, or with substitution symbols (WILD). They complement any combination to a winning one. The return percentage is 96.7%. The level of volatility is estimated as average.

7. Lil Devil (Big Time Gaming)

When creating the game, its developers were inspired by a song from The Cult called Lil Devil, and this is where both angels and devilish wilderness meet. It is a relatively new slot in the gambling industry. It was developed by Big Time Gaming and introduced in September 2019. It has a high level of dispersion. Its RTP is 96,43%.

A playing field consists of 4 rows and 6 reels. Its total number of paylines is 4096. Gamblers are free to make bets up to 20 dollars per spin on all platforms and devices. Wild Angel Symbols can multiply winnings up to 144x during both a regular game and free spins.

8. Bonanza (Big Time Gaming)

Our list of the best slots would be incomplete without this game. The game has gained popularity in the gambling industry. Almost every gambler has tried it at least once. It is represented on gambling platforms since 2016. The mining industry is taken as the theme basis. It is a 6 –reel game with 117649 paylines. The level of dispersion is assessed as high. Its RTP is 96%. A minimum bet is $0.2. The slot is customizable for mobile devices. It has all the necessary features and bonuses, including multipliers, free spins, Wild, Megaways, and others.

9. Starburst (NetEnt)

It is one of the most famous NetEnt’s slot machines, which became famous shortly after it was released back in 2012. It is a timeless classic that remains relevant and interesting nowadays. A playing field has 5×3 cells and 10 paylines in both directions. Starburst is customized for playing on portable devices. It has a low level of dispersion. RTP is 96.09%. a minimum bet is possible for $0.01. Bonus options include respins, respin Wild, Wil Rush.

10. Gonzo’s Quest (NetEnt)

The reels are made up of stones with Aztec symbols carved on them. Blue, purple and gold masks are the most expensive. Combinations with them give the maximum winnings.

Users will also find a “Wild” symbol. It represents a question mark. As in any other slot, it can replace any missing symbol in winning combinations. A 5×3 slot has a high dispersion rate, 20 paylines, 96% of RTP. Gonzo’s Quest is supported on mobile gadgets.

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Principles of Selection

Any rating is based on certain data obtained during a precise analysis of each subject under consideration. Thus, below, let’s see what criteria we considered when compiling the best online slots list.

Volatility

The notion is the level of risk in a slot. It denotes quantitative and qualitative indicators of winnings in slots. In other words, volatility (dispersion) shows how often and how much players win in a particular slot. They distinguish three types of volatility: high, medium, and low.

High-volatility games are characterized by a high level of risks. The essence is that winning combinations drop out in such slots rarely, but the sum of won funds is significant.

Slots with medium volatility are the most widely used. They gained popularity among gamblers.

Low-volatility slots have a low level of risks. They frequently give out winnings combinations, but winnings are small.

RTP

RTP is the indicator that denotes the percentage of return to a player. This value shows the probability of winning in a slot machine. When considering the indicator, a player understands how much of his/her funds will return as a win. As a rule, the level of RTP on the best online slots sites is more than 90%. Reliable software providers always provide such information in the description of a slot.

Popularity

Some games attract more gamblers, while others get less attention. This determines slot popularity. It is an important criterion due to the following reason: if more gamblers choose the slot, it means that it functions properly, and players are satisfied with the functionality of the game and its results.

Gameplay

This criterion determines how a gambler interacts with a slot, how he/she reacts to its interface and game reality, what emotions a game plot evokes.

Graphics

A user creates the first impression of a new slot by judging its graphics. Graphics is the first thing a gambler sees when starting a new game and choosing a slot in the list of provided options. The first demonstration of the slot sets expectations. Paying attention to the graphics is necessary since it captures the imagination of players and makes them explore a new world.

Music

Music creates the necessary mood. Pleasant music attracts a player, excites, and creates the illusion of being in a pleasant place during the gaming process. Thus, it is an important criterion for evaluating the best online slots for real money.

Bonus Features

This point includes special incentives that are written in a program by software developers to attract players and diversify the gameplay. These are unique bonuses used in a particular slot. However, they are similar in many of them.

Types of Slots

The range of slots includes thousands of options. These include classic options that completely copy mechanical one-armed bandits; modern ones, the gameplay of which is more like animated quests. All divertissement is divided into the following groups.

3-Reel Slots

This type of entertainment is a pioneer and ancestor of all modern slots. Such products were invented and started to be produced over a century ago. Nowadays, online casinos have identical copies of such machines, as well as those slots that were in real casino halls in the 90s of the last century. For many players, such slots evoke nostalgia and memories of that time, allowing them to return to their youth.

5-Reel Slots

This type of divertissement is the most popular option. It is represented in the widest range, in a wide variety of categories. These include animals, jewelry, comics, music, fruits, neon, pirates, and more. The main characteristics of such slots:

  • Eye-catching graphics;
  • A great number of paylines (up to 243);
  • High RTP rates;
  • Bonus rounds;
  • Free spins.

Slots with Progressive Jackpots

This type of casino entertainment represents a chain of slots with a common jackpot. Every time a gambler plays such a slot, the amount of the jackpot increases until a lucky one wins it. Accordingly, the size of the jackpot depends on the number of gamblers who play the game. Microgaming stands as the founder of this type of slot.

Slots with Bonus Feature

When choosing the best slots to play online, pay attention to the bonus features available during the game. It can be free spins, respins, Wild symbols, multipliers.

Slots without Bonus Feature

This type of slot does not have the above-mentioned bonus features.

Types of Bonuses at Slot Sites (Casinos)

Gambling platforms use bonuses to draw clients and encourage regular players to spend more time on the site.  Each player can find the most acceptable option among casino’s special offers. Various types of bonuses are offered. It can be either money or free spins.

No-Deposit Bonuses (Free Spins)

The number of free spins per account activation can vary from 5 to 100 or even more. Free spins can be given for:

  • Account replenishment (the number of free spins depends on the amount of the deposit);
  • Joining a group or community on social networks;
  • Chatting on thematic forums;
  • Application installation;
  • Newsletter subscription;
  • Participation in promotions.

Free spins are credited automatically at online casinos. They eliminate financial risks for players since bets are sponsored by a club, and the money won can be immediately withdrawn or used to participate in new tournaments. Bonus spins for depositing and registration are issued on wagering terms. They have restrictions on time, types of games, and bets.

Welcome Bonuses

This is a way to encourage new users for registering on a gambling platform. After a newbie passed a registration procedure, he/she gets an additional amount of money or free spins (or both in some clubs).

Other Bonuses

Online casinos have a branched system of promotions. Thus, in addition to the above-mentioned ones, gambling sites offer a reload bonus, a bonus for the second/third deposits, hot weekend offers, a bonus for a birthday, New Year, Christmas, other holidays.

Advantages & Disadvantages

The main pros of online slots are:

  1. Clients can play the best online slots for free. If you have an account on a gambling platform, all games offered on it are free for you.
  2. No need to go somewhere. You can play on your sofa without leaving a warm house.
  3. Casinos offer a huge variety of slots. Its number exceeds 1500 options in the majority of clubs. Players can choose a game to any taste. Thus, be sure to find your favorite divertissement.
  4. Slots with different volatility allow controlling risks and winnings.
  5. The best free online slots no download option allows playing directly in a browser. No need to download slots or software to start your gambling experience.
  6. Slots are well developed. Music, graphics, themes are thought out to the smallest pieces. This allows gamblers to get away from routine, relax, and plunge into the world of a favorite game.

Still, where pros are, there, also cons can be found. So, the main disadvantages of slots include:

  1. A high level of risks. Even if a client chooses a low dispersion slot, he/she still may lose money. Any experience at a casino goes along with risks of losing funds.
  2. Clubs with bad reputations offer non-licensed software. It is important to find a trusted casino, where slots do not lag. Otherwise, you’ll get more negative emotions rather than positive ones.
  3. Slots cause addiction. You won’t even notice when you lose touch with reality and get addicted.
  4. Some slots are forbidden in some countries. So, users from different states may face difficulties to find the desired slot.

Conclusion

To draw the line of our best online review, let’s note that modern casinos offer a truly huge selection of slots. Their number is over 1500 options. The games included in our list are considered classic. These are the games that are searched and chosen more frequently.

There are different types of slots. They differ in the number of reels, the principle of operation. Each slot has its peculiarities and attractive encouragement. These include bonuses, such as free spins, Wild symbols, multipliers. The gambling experience becomes more exciting due to these elements. This step attracts gamblers and encourages them to continue playing.

F.A.Q

What is a slot?

✔️ It is an online analog of mechanical one-armed bandits that were placed in offline casinos many years ago. Nowadays, they are digitized. Players should press one button to spin the reels.

How do slots differ?

✔️ All slots are divided into several groups. First of all, they differ in the number of reels. There are slots with 3, 5, and 7 reels. Also, they distinguish slots with progressive jackpots.

What is a slot with a progressive jackpot?

✔️ This notion implies several slots that are chained in one network and have a common jackpot. The jackpot is in increase with each win. It means that if a player wins a jackpot, the next winner will get a bigger win.

Are there any bonuses for playing slots?

✔️ Each slot has features. These include multipliers, a Wild symbol, free spins.

What is a Wild symbol?

✔️ It is a special icon that appears on the reels. It has the power to substitute any element to make your combination a winning one.

Does the sum of the bet depend on the outcome?

✔️ Of course, it does. If you make a bigger bet, potentially, you’ll win more. Still, there is a risk to lose more as well.

Is it legal to play online slots?

✔️ Different countries have different legislations towards gambling in general. Slots, as part of the industry, are subject to the corresponding law.