Along with that other slots behemoth, Microgaming, Playtech is the biggest provider of online casino and gaming software in the world.
Multi-award winning and responsible for some of the most popular online slots around, Playtech has so many fingers in so many pies it's a wonder the London Stock Exchange-listed firm manages to excel at all of them.
But whether it's online poker, bingo or casino, Playtech manages to do just that. Let's take a closer look at what makes Playtech's slots so special.
Formed in 1999, Playtech didn't get its first casino licensee until two years later, but by 2006 it was listed on the London AIM and crushing the competition with is iPoker online network.
Sportsbetting followed, but it's the many online casino acquisitions that slots fans will be interested in.
Ash Gaming came under the Playtech banner first, in 2010, an addition that saw Playtech's output rise to over 500 online games. The firm releases over 50 new games each year on the cutting-edge Playtech IMS platform, with many major brands involved like HBO, Universal and most significantly, Marvel.
Playtech also develops its own unique table game and bingo software, as well as HD Live Dealer software in all the classic games. Playtech Live Dealer games are available at native English, Spanish and Italian-speaking casinos online.
Taking the 'live games' angle a little further, Playtech also provides TV broadcast games to the UK, Spain and Italy.
As you'd expect from a major online slot developer, Playtech's slots offering is wide and varied. The software manufacturer has produced hundreds of popular games, ranging from the fun (Dr Lovemore, A Night Out) to the fantast (Atlantis Queen, Alien Hunter) and the branded (Baywatch, Gladiator).
A tie-in with Marvel has led to some extremely popular progressive jackpot slots (see below) while other tie-ins have led to an excellent HBO slot based on The Sopranos, and DC-themed games like Daredevil and Electra.
More recently, slick 3D efforts like Three Musketeers and the Queen's Diamond have hit the casinos.
Based on the literary classic, the game is played with 50 paylines across its five reels and has expanding Wilds, a nice mission bonus where your heroic character storms the castle on the lookout for loot, and Free Spins.
Many online casinos, such as bgo, use Playtech's slots and table games exclusively, and as such we are beginning to see the number of Playtech jackpots rising.
Playtech has its fair share of progressive jackpot games. The popular Beach Life paid out a jackpot worth £3.7 million 2015, the second-biggest in the game's history. This followed hot on the heels of a £4.4 million payout for the game just a couple of years ago.
Marvel's Jackpot games are perhaps the biggest reason to play Playtech slots. The games that form part of the Marvel Mystery Jackpot (The Incredible Hulk, Fantastic Four, Avengers, etc) feature four separate levels of progressive that trigger at random during the game.
The Power Jackpot, Extra Power Jackpot, Super Power Jackpot and biggest Ultimate Power Jackpot (seeded at £100,000) feature a mystery grid made up of 20 squares which hide prize cash amounts. Find three matching symbols and you'll take down the corresponding jackpot.
Whether you're into great sports-themed slots like Top Trumps and Frankie Dettori's Magic Seven or big Marvel slots like Spider-Man, there's enough in the Playtech arsenal to satisfy the most jaded slots fan.
Luckily, at VegasSlots.co.uk we have a top selection of free-play games for you to enjoy. Try out some slots before moving on to one of our great casinos and playing for real money.