If you sign up to one of the top rated online casino sites we have listed, you will find the best online casinos have over 500 fun casino games. However, if you are particularly into playing slot games then you are going to be amazed at just how many are available online.
To give you a deeper insight into the sheer diversity of the types and categories of online slot games you are going to be able to play; free slots or real money online slots, below we have made an overview of each of the different types of slots you will come across.
Also do make sure you study the section below in which we highlight the three most played and most popular online slots, for these games really are going to blow you away with their base and bonus game features, their huge winning potential and each slot listed boasts higher than average payout percentages which guarantee a very enjoyable slot playing session whenever you opt to give them a whirl!
Three Most Popular Free Slots
Below are the current three most popular online slot games, each game offers you a completely different type of slot playing experience, however, they all give players the very real chance of winning some huge amounts of cash!
Avalon 2 Slots – The Avalon free slots game is one of the most recent offerings from Microgaming. Using a 243 ways to win payout system, you’ll find plenty of winning combinations on this slot. There are also stacked wilds, free spins, a huge variety of bonus games including a dice game, a randomly triggered multiplier, picking games and if you’re very lucky, scatter pays that can be absolutely huge! Because this game runs on the All Ways engine, you aren’t able to reduce the number of lines you play, however, you are able to alter the stakes, and as such, you can play for very small amounts.
The jackpot on this slot is won when 5 wild symbols appear on the slots reels this will then award you with 100 coins per combination, meaning that a screen full of these symbols would award you with 243000 coins! During the base game, Merlin may appear to award you with extra wilds, or bonus credits, and quite often when he appears the bonus awarded is truly huge! There is a bonus expanding wild on the third reel, and when this spins into view, it will expand turning the entire third reel 100% wild!
Thunderstruck 2 Slot – Thunderstruck II is another of the later offerings from Microgaming, running on a similar engine to the Immortal Romance slot, also from Microgaming, this game has 243 ways to win as well as plenty of Wilds, scatter symbols, 4 free spins bonuses and a randomly activated Wild Storm bonus.
As the game has stacked wilds, you’ll be able to create plenty of wins, and should you spin a screen full of Thunderstruck II wild symbols, you’ll be awarded 2.4 million coins! The Bonus Warhammer symbol will trigger the Great Hall of Spins, and it’s here that you can unlock one of 4 types of free spins bonus:
Valkyrie Option – This option offers 10 free spins with all wins multiplied by 5.
Loki Option – 15 free spins with Wild Magic feature.
Odin Option – 20 Free Spins with Wild Raven feature.
Thor Option – 25 Free Spins with Rolling Reels feature.
The key to unlocking these free spins is by triggering the free spins bonuses. After a set number of triggers, you’ll unlock the next and the next. The initial sets of free spins you trigger are the Valkyrie spins, and these do offer some huge potential for winning big!
There are stunning graphics on the Thunderstruck II slot, and the audio is of studio quality, so we recommend that when playing you crank up the volume and immerse yourself in Thunderstruck II!
The Dark Knight Slot – Are you ready to return to Gotham?
The Dark Knight slot is another of the popular slots from Microgaming, and this slot comes in two flavors, the Stand Alone, and the Mega Moolah progressive slot. They both play and pay identically. However, the Mega Moolah progressive does give you a random bonus and a fair crack at winning a progressive jackpot.
You’ll find all kinds of fun features in this slot including scatters and stacked wild symbols. There are also free spins up for grabs with a multiplier starting at x2. These free spins are triggered when 3, 4 or 5 Joke symbols spin into play and they will also award credits of 300, 1500 can 15000 coins respectively. During the free spins, a special reel set comes into effect that gives you an even bigger chance of winning!
Being a 243 All Ways slot, you have no paylines, simple spin 3 or more matching symbols into view from the leftmost reel to be awarded with that symbol’s corresponding prize! If you have never played an All Ways slot before, we are sure you’ll have no problems becoming accustomed.
We do warn you however, this game is quite a High Variance, which basically means that you will occasionally go through a dry spell when it comes to winning, however when the reels fall your way, you’ll have tons of winning combinations spinning in!
Mega Moolah Slot
Now, for the Mega Moolah bit, the Mega Moolah feature round is a randomly awarded game. At the end of any given spin, the game may go into lock-down, and a new screen pops up. You are then tasked with choosing your side, the Joker, or Batman.
After choosing the wheel will spin, and whichever prize portion lands on your marker is the prize you have won. The Mini jackpot starts at a modest 10 coins, the Minor 100, the Major 1000 and the Mega progressive jackpot starts at a massive 1000000 coins! This is by far one of the most popular Mega Moolah progressive slots, however, if Batman isn’t your thing, there are a variety of other games in the range including Mega Moolah, 5 Reel Drive, Summertime Slot and more.
These games all offer different win-lines, playing stakes, themes and colour schemes, however, they are all linked into the Mega Moolah progressive, so at any given time, when playing any of these Mega Moolah slots, you could be walking away with far more than you bargained!
As mentioned above, not all progressive slots work like this, and some do need you to place a maximum bet, however, this isn’t required with Mega Moolah, as you always have a chance of getting a progressive jackpot.
Types of Online Slot Machines
3 Reel Slots
The beauty of 3 reel slots is the fact that they are a lot easier to play than fruit machines which boast a three reel playing structure, and most certainly are easier to play than all 5 reel slots. There is a huge array out there for you to sample, and they tend to offer only 1, 3 or 5 paylines.
Some do offer bonus games, while others don’t, however, one thing that is to be said about 3 reel slots is that they are perfect for beginners. Another type of 3 reel slot is the aforementioned Fruit Machine, which we’ll cover a little later.
Video slots are 3, 5 or more reel slots, and basically, these are defined as being so by the simple fact, they’re video powered. Now, this only applies to slots in a land-based casino, on the web the term Video Slot is generally used to define slots with 5 reels and multiple paylines, such as Avalon 2, which has a staggering 243 ways in which you can win.
These slots all come with Scatter pays which will see you picking up a cash prize of triggering a bonus game feature round simply for getting a certain number of these symbols on your reels and not needing them to line up on any activated pay-line.
You will also find all types of bonus games which include feature rounds such as free spins and plenty of other added extras. It is also wise to note that Video Slots online also have a relatively high RTP payout percentage, with some well into the 90% bracket!
In fact with some research and hunting around it is not uncommon for you to find online video slot games which come with payout percentages are high as 98% or even 99%, and with added extras such as comp points and casino bonuses by locating and then playing those video slot games lots of winning opportunities will be coming your way!
As well as these slots having added extras, they also tend to be a higher quality graphics and sound wise, with some even having 3D video attached to wins and studio quality sound. All in all, these slots tend to be more immersive in comparison to the older 3 reel slots.
Progressive slots can take many forms, be that 3 reel, 5 reel or more. They can also have many win-lines, as well as all the usual features such as free spins and picking bonuses. What sets these slots apart from any other however is that a small portion of each stake is put into one or more of the progressive jackpot prize pools which are always displayed on the slot games screen!
Biggest Current Slot Jackpots
These individual pots are called Progressive Jackpots and are won only when a certain challenge has been achieved, such as a winning combination on a certain win line, or completing a bonus mini-game such as matching 3 symbols.
There are plenty of slot type games available, such as the Mega Moolah wheel of wealth type game, as well as the more straightforward winning combination. In some cases, it should be noted that you need to be placing a maximum bet to be eligible, but it isn’t the case for a fair whack of Progressive Slots out there.
As you are going to come across some progressive jackpot awarding slot games that can out of the blue suddenly award you with their jackpot payout completely at random, and these types of progressive slot games are the most popular ones played online, so do look out for these random jackpot slots for even when playing them at tiny stake levels you could still be suddenly awarded a life-changing jackpot win!
These 3 reel slots are very popular with British Players and are usually found in pubs and clubs and are often designed to be very high action slot games some of which can be quite expensive to play in land-based venues. However there is quite a large and in fact, growing number of these slots on the internet to play for high and low stakes, so you will find one to suit your budget.
They tend to only have the one win line, but some offer 3 or 5 win-lines. The reason that Fruit Machines are so popular is due to the individual way they play, not to mention that they tend to have tongue in cheek themes.
A lot of Fruit Machines also have multiple features, in both the base game and the bonus game. Base Game features can include Trails, Nudges, Holds, Nudge Gambles, and Matrices. Bonus game features commonly include Win Spins, bonus nudges, greed type games, hi-low wins and some even include beat the banker type games. It’s safe to say that if you’re looking for a slot that offers plenty of bonuses, Fruit Machines are definitely worth a try!