Slot Machines Online

Our website, Slot Machines Online, is a gaming portal dedicated to slot fans. Our goal is to bring you all the necessary information for gambling. We go over online slots bonuses along with the best sites for slot players (and which ones to avoid). There are also guidelines of everything you need to know before playing for real money. Either way, if you are looking to play free slot games or to play slot machines for money, you came to the right place.

new slot machines online

Tired of playing the same slots? Check out new online slots

Loosest slot machines

Loosest slots: an updated list of the best paying slot machines

Cashable Bonuses

Increase your odds playing on casinos with cashable bonuses

Fastest Payout Casinos

Fastest Payouts: Reputable casinos with the fastest cash outs

If you still have any questions, contact us now! We promise to do our best in answering all things related to slots.


Recent Casino News & Promotions

Slot Machine Bonuses

There is a fierce competition between online casinos. Because of that, there are many flashy welcome bonuses trying to grab your attention. Other than the welcome bonus, (aka match or deposit bonus), there are other benefits casinos can offer. You can find loyalty bonuses, cash back and free bonuses.

While the word “bonus” sounds positive, that is not always true. Some bonuses do improve your chances of winning, while others can do exact the opposite. If you are looking for a good welcome bonus, here is our list of the best slots bonuses to get you started. We also have a list dedicated to Cashable bonuses

Playing Slots – Tips and Guides

What’s Your Favorite Slot Machine?

In 1996, there were only a dozen online casino sites. Less then 20 years later, and online gambling is a multi-billion dollar industry. There are 1,500+ casinos online, each one with hundreds of games. The variety is both exciting and intimidating, sometimes making it hard to choose.  

The best slot machine comes down to personal style. If you asked the team here at Slot Machine Online, each person would have a different answer. So, do you like classic 3-reels or crazy graphic 3D slots? Are you looking for casinos that accept Paypal or Visa? The differences go on and on.

Our rating algorithm is based on different parameters and the outcome is listed here. If you are looking for something specific, like casinos with loose slots or high welcome bonuses, you can read more about casinos in each category.

Free Slot Machines Online

Choosing an online casino to play for free is easier then picking real money slot machines. It is still important to find fun titles, and not waste your time on boring slots. Our casino reviews start with free slot machines. It goes over the game variety, software stability and special features. 

You can play a great free slot machines right here on our website, Slot Machines Online. At the bottom of each page, there is a list of casinos where you can play the slot and other similar slot machines.

Online Casino for Real Money

The first and most important thing when playing with real money; fine a reputable casino. When your money is on the line, the games are more than just fun like in free mode. The best winning odds are also imperative.

  1. Choose a trusted and reputable online casino. Any of the casinos listed here are secure. 
  2. Download the casino software and sign up. If you are using Mac or Mobile, you should use the flash version.
  3. If you wish to use a bonus, now is the time to redeem it. (In some casinos, you first make a deposit and then redeem the bonus). 
  4. Make a deposit. Make sure that the deposit amount is within your comfort zone. Never deposit money that you can’t lose. Playing casino games for real money is exciting and fun. While you can win big money, it’s not a way to earn a living.
  5. Choose the slot machine you would like and have fun!

Casino Deposit Methods

There is an enormous variety of casino deposit methods, which makes it easy for players to fund their account. Options include credit/debit cards, e-wallets, prepaid vouchers, pay by phone and more.

However, the deposit options vary in different countries and different casinos. Visit our casino deposit methods section to find the best casinos for each payment, how to use it and whether you can also use it to withdraw. Below are the most popular casino deposit options.


Slot Machine Types

Slot Machines are by far the most popular casino game, both online and offline. Over 80% of wagering happens at a slot machine. There are endless types of slots with new versions being invented every few months! Here is a breakdown of the basic slots.

  • Three reel slots: These are known as classic slots. They have 3 reels and typically a lower number of pay-lines compared to 5-reel slots. Three reels means it is generally more simple and direct. This type is the best choice for players that don’t like the effects and sounds in video/3d slots. You will find familiar symbols, like Big 7 or Stars and Stripes.
  • Video slots: 5 reel video slots are the next step in the history of slots. They have more symbols, offer more pay-lines (20, 25 or 50) and additional features such as free spins, bonus rounds and more.
  • 3D Slots: 3D slots are a recent development in slots technology. They combine all the features of video slots with realistic, three dimensional symbols and effects. Most 3D slots are based on a story line which advances as the game proceeds. 3D slots include popular names such as 2 Million B.C. and The Slot Father.
  • Progressive Slots: Progressive slots have a regular jackpot and a progressive jackpot together. These slots are usually connected to other titles in the casino. Sometimes they are connected to slots in other casinos. Part of each bet goes to the progressive jackpot, which is higher then the regular jackpot. It can reach millions of dollars, but they are harder to win.The downside of progressive slot machines is that part of the bet is diverted to the progressive jackpot, so the regular payout is lower than average. Although it is nice to try and win the big jackpot, we do not recommend playing your entire budget on progressive slots.

Slot Machines Online FAQ

Are online casinos safe?

In short, yes. Licensed online casinos have similar security as banks. All your personal and financial details are encrypted. Just make sure you picked a licensed casino! All of the sites here are licensed. If you want to look beyond our recommendations, check the casino has a valid license by a quality licensing jurisdiction.

Do I need to download the software?

There are two ways to play casino games online. The first option is to download the casino software. Otherwise, you can use a flash mode, also called the “no download” version. In general, play is spit 50/50 in Europe, UK, Australia, New Zealand and Canada between downloaded and flash.

In the U.S. the situation is different. Download casinos are more popular. This is mainly because the flash version at American casinos is typically trash. If you are looking to play in-browser, here is our list of the Best Instant Play USA Casinos.

Two special cases: If you are playing on Mac, tablet or mobile, then you should use the no-download version or an app. If your internet connection is weak, then we recommend downloading it.

Can I play real money slot machines on my mobile?

Yes, most online casinos adapted to the mobile revolution. You can sign up through your mobile device. If you already have an account, just log in. Both ways have plenty of mobile slots for real money to choose from.

Who licenses and regulates casino games?

Acquiring an online casino license is not easy. The casino must pass many checks and audits in order to get a license. There are few reputable licensing jurisdictions, such Kahnawake, Malta, Gibraltar, Antigua, Barbuda and few more.

How do I know that the casino is licensed?

All the casinos listed on our site are licensed casinos. If you want to see for yourself, scroll to the bottom of the casino’s home page and look for the symbol of the licensing jurisdiction. If you can’t find it, we recommend choosing another casino.

How can I deposit money in online casinos?

Online transactions became increasingly easier and safer over the past decade. The most common way is still by credit card. Most online casinos accept cash deposits by all major credit cards. New deposit methods are PayPal, Skrill, Eco card and more. The available deposit methods are usually listed at the bottom of the casino home page. You can check our casino deposit methods review for more info.

Slot Machines Online was last modified: January 4th, 2024 by Mark