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Welcome! This is where it all happens – non-stop slots action!

Hundreds of the best and most popular online slot games are available here for you at Prime Slots. As you first register, you can get your Welcome Bonus Spins (18+ | T&Cs Apply) and start playing.

If you’re new to online slots, scroll down to our How to Play Slots Guide – everything you need to know about online casino slot machines.

May the Spin-Force Be With You!


Let the Spin Begin & Play the Best Casino Slots Online

There are many types of online slots available on Prime Slots, from the best slots developers in the industry. When you hit the Play button, things will start happening. Music kicks in, reels spin, paylines present themselves giving you the chance to win, wilds animate in front of your eyes and scatters award you with different bonuses.

How to Play Slots Online – the Complete Guide of Game Features

This is your chance to understand how online slots work. We’ve put together a comprehensive guide of online slot machine games – main features, tips for how to set your bets, breakdown of odds and FAQs. It lays down the basics first, and then goes in detail into the different features of the game.

You are probably familiar with the Classic Slot Machine. Three reels spin, and in order to win you need to get three identical symbols lined in the middle. When you play slots on the web, well, it’s a whole different game.

Online slots games, or as they are also called, Video Slots, are more than that. First of all, most have five reels. The second thing to understand is that the winning streak doesn’t need to appear in the middle row. It can be in the top or bottom row, it can be diagonal or in zigzag. Also, the locations of the winning streaks change from one slot to another.

Welcome to the slots online world. How would you know you have won if there are so many different winning options that change from slot to slot? Worry not; you will be let known of your every win by the game’s software.

Slot Machine Paylines Review & FAQs

Let’s start with the most important aspect of playing online slots – paylines. This determines so much of the game you’re playing, how much should you bet on each spin, what are your chances of winning, how quickly the game progresses and the level or risk vs. chance. First thing, definition of paylines.

What Are Wild Symbols

Slots Wild Symbols

A Wild Symbol is basically anything you want it to be, or actually, any symbol the software chooses it to be. No matter how you look at it, wild symbols increase your chances of winning. Here’s how.

In slots you need three identical symbols in order to win. But - you can win with only two identical symbols if along the payline you also get a wild symbol. Wilds can stand for any other symbol. If you get two cherries and one wild - you win! If you get one spade and two wilds – you also win!

The last thing to know about wild symbols is that they come in all shapes and sizes. Each slot has its own wild symbol design.

Slots Wild Symbols

What Are Scatter Symbols

Slots Scatter Symbols

Scatter symbols are another great feature of online slot games. They can generate a number of different outcomes: Scatter symbols could award you with coin prizes, free spins or bonus rounds.

In order to get these prizes, you’ll need to have 3 or more scatters appear anywhere on the online slots reels, in no specific order or location. (There are some online casino slots where 1 or 2 scatters are enough to generate a small prize, but that’s not the norm.)

Important to know: Scatter symbols don’t need to land on a payline. As long as they are visible on the screen, they count.

As mentioned, scatters can generate free spins and bonus rounds. Another common activation of scatter can be that of a multiplier – it multiplies your win x2 or x3. The best part is, scatters multiply your entire win from the round, not just that of a specific payline.

There are exceptions however; wilds cannot substitute for scatters. Three scatter symbols are needed to generate a winning feature, and in this case the wilds can’t stand for a scatter; you’ll need all three.

Slots Scatter Symbols

Tips for How to Set Your Bets on Online Slots Games

When you want a chance to win real money, you can start each online slot game by deciding the amount of money you wish to play with. There are two steps to complete:

Explanation of Odds of Winning Two Main Factors

Two of the most fundamental concepts to understand about slot machines are ‘return to player’ and ‘hit frequency’. Together it gives a general idea of how "generous" a slot machine could be. Both are per machine.

What is Return to Player (RTP)

RTP – RTP stands for Return To Player. The RTP percentage is a measure of the percentage of stakes a game returns to players (generally over a minimum of one million plays), and is a generally accepted guide to how a game will perform.

Important to note: online slot games have a much higher RTP than land slot machines.

To find out the RTP of an online slot game, click the “i” or “?” button in the main screen of the game. All online slot games must display their RTP.

What is Hit Frequency

Hit frequency is the percentage of times a slot machine will stop its spinning on a winning combination. Meaning, if a slot machine hhas a Hit Frequency of 25%, it will generate a winning combination of approximately 1 out of every 4 spins.

The average here varies widely. Let’s say it is between 10 to 30%, for online slots.

Important to note: high hit frequency doesn’t necessarily increase your overall winnings. Why? Because it also depends on the RNG (Random Number Generator).

Mobile Slot Games - The Vegas Experience in the Palm of Your Hand

Mobile Slot Games

The best part is, you’re completely free to play slots anytime and anywhere. Prime Slots offers a wide selection of exciting casino slot games on many mobile devices, like iPhone and iPad, Android machines – smartphones and tablets; it’s the best way to enjoy Prime Slots on mobile - register, make a deposit and start spinning away!

If you’re a fan of the classic fruit-machine, Vegas style, then you’ll have a great time with the various types of mobile slot machines we offer. What’s more, in keeping with the Las Vegas tradition, we offer jackpot machines as well as progressive jackpot machines.

That is all you really need to know in order to start to play your favorite slots online. If you read thus far, you are ready. Have fun spinning the reels!

Mobile Slot Games

FAQs about Gambling on our Prime Slot Machines

How can I start gambling on casino slots?

It’s very simple. Here’s how

  1. Click the large “Open Account” button.
  2. As you are a first time user, register by entering your email address and choose a password.
  3. Set up your account.
  4. Now make your first deposit and that’s it – you have already received your welcome bonus waiting for you in your account.
  5. Choose a game and start to gamble!

What are the odds of winning on Prime’s Slots?

All of the online slot games on our site are set to payout approximately 1 out of every 3 spins. This average is in line with industry standards, and, you should know, much higher than physical slot machines in brick-and-mortar casinos.

How often are new online slots added to your website?

Prime Slots adds a new popular game once every week or two. Sometimes even more frequently!

How many slot machines with bonus games do you have?

All of our casino slots have bonus game features in them. Slots with bonus games and rounds are one of the main attractions of the game – can’t imagine one without the other.

What are the advantages of becoming a loyalty player?

You’ll get your own personal account manager, immediate access to privileged loyalty-only slot machines, special bonuses and special treatment.

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V: 2.29.0 All rights reserved. January 2020