Online Slots – Free, Real Money & Game Reviews
Slot machines are the most profitable part of the casino floor. From Las Vegas to Atlantic City, walk into any U.S. casino and more space is dedicated to slot machine row than any other casino game. Online slots work the same way. If an online casino features 300 games, roughly 250 of those games will be online slots. Mobile slots are even more weighted to the one-armed bandits.
Our guide to slots covers both live and online slot machines, including traditional design companies like IGT and Bally slot machines to online slot developers like Microgaming, RTG, and NetEnt. This page discusses 3-reel classics, 5-reel video slots, licensed slots, progressive jackpots, and 3D slots. Our review section covers some of the most famous slot machines you’ll find on the Las Vegas Strip, as well as a growing list of online games. We offer 50+ free online slots you can play without risk or obligation.
Most Popular Slot Games
We have over 4500 free slot games. Play some of the most popular titles from Bally, IGT & Aristocrat.
Have a question? We've probably answered it in our FAQ guide. A four part series covering everything about slots.
Where to play real money games.
Play slot games on your mobile device. Apps for Android, iPhone, iPad and tablet devices.
Top 10 Free Games and Most Popular Slot Pages
Do you prefer to play slots online for free? If so, look no further. Our slots guide includes over 30 different slot games. The list of games featured to your left are a small sampling of what we have to offer. And by free slots – we mean 100% free. The slot games listed on our site don’t require you to download any software and you don’t need a special account to play them. You can view all of the games here.
We also offer comparison reviews for a variety of topics. These pages include 3D games, high & low limit slots, where to find the loosest slots as well as compatibility reviews.
Top 10 Free Slot Games
Play Free Slots on BestOnlineCasinos.com
Guide to Online Slots
Though the world of slot machines is vast, it doesn’t take long to figure out how slots work and how to play online slots. If you have any questions, feel free to send us an email or read our slots FAQ, page, which answers over 120 questions about the online and mobile slots industry here in the year 2020.
Online Slots for Real Money
Slot software has more variety than any other casino game online. Some casinos offer Vegas slots while others include 3D animation, spectacular graphics or cater strictly to bonus games. Our site offers software pages for all of the major brands including Bally, IGT, RTG, Betsoft, Microgaming and more.
Online Slots FAQ
How Do Online Slot Machines Work?
Like land-based slot machines, online slots use a random number generator (RNG) to produce results. Every second, the RNG produces thousands of results. At the instant you hit the “Spin” button, the RNG selects the latest result and matches it to the correct reel symbol configuration. You’re paid out if winning combinations hit.
Most importantly, each spin is independent of the previous spin, so there is no predicting when a jackpot is about to hit.
RNGs have been around since the late 1970s, so this is proven technology that’s over 40 years old. Many innovations and improvements have happened over the years, but online and mobile slot machines work no differently than the electronic slots you’ll find in brick-and-mortar casinos in 2020.
Does a deposit bonus work for online slots?
Yes. Welcome bonuses tend to restrict certain games from clearing the wagering requirement, but online slots are never restricted. They count 100% towards the playthrough requirements. This free play cash allows players to test new online slots without risk of losing their bankroll. Some gaming sites offer no-deposit bonuses, which provide free bonus cash simply for registration.
The one exception is progressive slots. Most of the time, online slots with progressive jackpots are restricted from satisfying the wagering requirement. Until you clear the requirement, play the fixed jackpot slots.
What should I do if I have a gambling problem?
Call 1-800-Gambler. Dial this toll-free hotline for problem gamblers and speak with a trained helpline worker. You’ll learn about responsible gaming techniques and other resources you can use to deal with your compulsive behavior in a judgment-free environment.
Should I join a sweepstakes casino? How do they different from traditional online slots sites?
Sweepstakes casinos are a new form of online gaming site which purports to involve legal online betting in 31 U.S. states. Players pay real money to acquire casino credits called “sweeps cash”, which is used to play online slots or table games with a game mechanic technically described as an “online sweepstakes”. The rules are compared to McDonald’s Monopoly sweepstakes or Pepsi sweepstakes. When it’s time to cash out winnings, the player trades in the sweeps cash for real money, which supposedly makes the game legal.
There are two things you should know. One, sweepstakes casinos are based on theoretical laws, because there are no court cases or DOJ rulings defining the law. They might or might not be banned forms of gaming. Two, sweepstakes casinos are owned by relatively new startup companies based in Australia. If you want to sign up for a trustworthy online or mobile casino, it’s better to pick online casinos with a long reputation and many years in the business.
We review online casinos with a long term reputation in the industry. They use accepted practices and are licensed by offshore regulatory agencies. We can verify traditional online casinos because of 20+ years of resources built up to track such sites. Our reviewers also have been in the industry for over a decade, so we know the community well.
How do I know if I’m playing in a legal casino?
Much is written about the complicated legal framework of the US online gambling community. What isn’t often discussed is it’s legal for US residents to play online for real money. Federal laws like the Wire Act and the UIGEA ban certain forms of online gaming, while states like New Jersey and Pennsylvania fight these bans. Most US states don’t have online gambling regulations. That being said, the ban is on site operators and payment processors, but offshore online casinos accept US players without hesitation.
No American resident has ever been prosecuted for playing online slots for real money. That might change sometime in the distant future, but not anytime soon. The key is to pick trustworthy, reliable online casinos that pay on time. Read our online casinos reviews to find the best slots casinos online.
Last Updated: February 6, 2020
Slot Machine FAQ
Part 1 of our slot machine FAQ answers questions on slot odds, betting systems, payouts, winning and more.
Part 2 of our guide covers some of the more technical questions like payback rates, hit frequency, probabilities.
Part 3 answers questions for high limit play, progressive jackpot odds, slot methods, tipping and more.
Part 4 covers slot revenue in Vegas, playing online slots, video slots, the RNG, weighted slots and more.
Top 5 Online Slot Software Developers
Slot software has more variety than any other casino game online. Some casinos offer Vegas slots while others include 3D animation, spectacular graphics or cater strictly to bonus games. Our site offers software pages for all of the major brands including Bally, IGT, RTG, Betsoft, Microgaming and more. Below are the top five software platforms powering online casinos. Each page includes a list of the top five sites in addition to a complete overview of the various games on offer. You can view the most popular five software developers below or see our complete list here.
Below are the top five software platforms powering online casinos. Each page includes a list of the top five sites in addition to a complete overview of the various games on offer. You can view the most popular five software developers below or see our complete list here.
Slot machines are usually the most profitable part of the casino floor. More space is dedicated to slot machine gaming than any other category of casino game, from Las Vegas to tribal casinos to Monte Carlo. Though the world of slot machines is vast, it doesn’t take long to figure out how they work and how to play them.
Types of Slot Machines
There are a few different categories of slot machines, though a modern slot player only really needs to understand straight slots, video slots, progressive slots, and Buy a Pay slot machines.
Straight slots – These are traditional slot machine games. They don’t provide bonuses, and they pay out according to a standard pay table. Straight slots are the easiest slot machines to play. They’re excellent for beginners. If you’re just becoming familiar with the basics of slot gambling, stick with the straight slots. If you get bored or you want more action, consider moving on to video slots.
Video slots – “Video slots” are the fancier slot machines on the floor. These machines usually have larger screens to display movie-quality video and animation. These slots tend to be loud, flashy, and are usually placed in a conspicuous part of the casino floor to attract attention. Video slots tend to have licensed themes, like from movies or TV shows, and some of them are just loaded with bonus games and other features.
Progressive slots – “Progressive slots” are linked to other machines in the casino or even other slot machines at casinos around the country. The top jackpot for these machines is linked to other slots. A tiny percentage of every bet is added to a progressive jackpot total. Spin the right combination on your machine and the entire progressive jackpot is yours. Progressive slot machines tend to offer a worse payout percentage than machines that aren’t linked progressively, so it’s a bit of a risk to switch to a progressive machine and chase the jackpot.
Buy a Pay slots – Buy a Pay slots games have more than just one payout table that you can wager on, and you choose how many tables to bet per pull. Betting an extra payout table costs an extra wager for each one. Yes, it ends up costing more money to bet on Buy a Pay slots, but your chances of winning are better, too. Because different combinations pay out different amounts on each activated payout table, the number of potentially lucrative combinations goes up.
How Do Slot Machines Work?
Gone are the old electro-mechanical slot machines with static displays and heavy frames. These days, everything inside of a modern slot machine is controlled by a random number generator, a fancy device that spits out numbers all day. For example, when you pull the lever or push the spin button or in any way trigger the reels to start spinning, that random number generator comes up with a random number to assign to your spin, and that is how it is determined if you win or lose.
If you understand that today’s slot machines have a brain that runs on random numbers, you can avoid falling for inaccurate slot machine strategy advice. Anything you read online or hear from a friend that suggests that slot machines can be beaten is bunk. Each spin of the reels of a slot machine is unique from the one before it and has nothing to do with the one after it.
Tips for Playing Slot Machines
So now that you know slot machine outcomes are based on a random chance, do you feel like there’s no way to beat them? Don’t feel that way. Lots of people win lots of money playing the slot machines at their nearby casino or online gaming site. The trick is to keep your gaming within responsible limits and have fun.