They don't come much bigger than Microgaming. One of the biggest and most recognised and trusted gaming brands in the world, Microgaming have been producing quality slots and casino games since they began life in 1994.
Major Hollywood-themed slots jostle for space at online casinos alongside massive progressives like Mega Moolah and The Dark Knight and the big trade shows each year eagerly await the announcement of a new Microgaming slot to play.
Let's take a closer look at why Microgaming has grown to become the industry leader when it comes to online gaming.
Since 1994 - when Microgaming formed the first ever online casino software - the Isle of Man-based developer has been leading the way in Internet slots and games.
While poker fans swear by the mega long-standing MPN network, and online casino players can enjoy some top table game software, for slots players Microgaming is all about record-breaking progressive jackpots and slick games.
Microgaming now boasts hundreds of slots online, over 400 brands use the developer's software, and with over 225 mobile games, Microgaming are leading the way for the new generation of smartphone gambler.
Microgaming are probably best-known these days for massive branded slots like 2014's Jurassic Park - developed in partnership with Universal - and Terminator 2, available on the developer's own Quickfire platform. However, it's in the Mega Jackpot range of progressives where millionaires have been created.
The Dark Knight, a faithful branded game based on the 2008 superhero film, has been busy dishing out top prizes around the £6 million mark for years. At time of writing, the game's top Mega jackpot - linked to other Microgaming slots like Mega Moolah and Mega Moolah Isis across multiple casinos online - had reached £10 million.
While big-money progressives (see below) are usually what you think of when Microgaming spring to mind, the developer has a history of delivering some exciting branded games too.
Jurassic Park - launched to great fanfare in 2014 with the help of a life-size animatronic T-Rex - is inspired by the Steven Spielberg blockbuster, while similar branded fare like Terminator 2, The Lord of the Rings and 2015's Bridesmaids attract gamblers familiar with the source material.
On a more conventional level, the no-nonsense thrills of Thunderstruck and Thunderstruck II - while ageing - still attract a lot of interest, especially in the new mobile adaptations. Mermaids Millions and Lucky Leprechaun, meanwhile, take well-worn slots topics and give them a fresh twist.
Without doubt, Microgaming's Mega Jackpot range of progressives is a major draw for many players. The Dark Knight awarded a record £5.8 million jackpot back in 2012, but that could easily be surpassed if the (at time of writing) £10 million prize gets triggered soon.
Based on Christopher Nolan's mega-hit of 2008, The Dark Knight ticks all the typical Microgaming big-brand boxes as it includes actual images and video footage from the original Hollywood blockbuster, and the developer's customary 243-ways-to-win betting format.
If you're not playing the progressive, there's a simpler free spins bonus, triggered by hitting three or more Scatters on the screen. 15 free spins - and a 2x multiplier - can be won.
But it's another slot on the jackpot network - Mega Moolah - which has really dished out the big wins. The game awarded a top prize of CAD7.5 million in 2015, and the colourful African theme continues to be popular with online players everywhere.
Whether you're into fun slots like Big Top or Break Da Bank, big progressives like The Dark Knight and Mega Moolah Isis, or major branded slots like Bridesmaids, there's something in the Microgaming arsenal for you.
Check out our list of free-play Microgaming slots today and try some titles out without risking a penny.