The PocketGamer.biz top 50 developers of 2013: 20 to 11

Considering the tens of thousands of publishers and developers who are daily making new mobile games and supporting live titles, the task of picking out the relatively small number of 50 as being 'top' may seem to be a Sisyphean exercise.
Yet, that process provides a wealth of useful information, while the rigor of directly comparing companies - one against another - forces us to think about what we mean by the term 'top developers'.
In terms of our process at PocketGamer.biz, we used metrics such as creativity, critical acclaim, sales performance, innovation especially in terms of business model, and that certain je ne sais quoi that only the best studios exude.
The full list - produced in conjunction with leading app store analytics company App Annie and the largest Chinese mobile game development platform CocoaChina - will be revealed daily through our Top 50 Developer of 2013 section.
20. Game Insight
Up 15 (from 2012)
Its focus is casual sim and city-building games, set in exotic locations, while a keen understanding of monetisation has ensured its 140+ million downloads have converted into strong revenue numbers. For example, Airport City has generated over $19 million, Paradise Island over $23 million and Mystery Manor over $41 million. Annual sales during 2011 were rumoured to be over $50 million, with more fuel for expansion provided by a recent $25 million VC round.
19. Mojang
Up 24
So maybe not core, but Mojang is certainly a key mobile player. It's found itself a special niche on the platform, just as it has on PC. Whether it can repeat the experience with forthcoming multi-platform collectible card game Scrolls, we'll find out later in 2013.
18. Big Fish Games
Up 5
The big change in 2012 saw the company embrace free-to-play titles. It's only released three to-date - Big Fish Casino, Found and the excellent Fairway Solitaire - but they're generating around $4 million per month; a number we expect to increase substantially. Plus there's the potential of its tablet streaming game service Big Fish Unlimited to consider.
17. Kiloo Games
New entry
When it comes to monetisation, the game has taken longer to get up to speed. Kiloo says it prefers to focus on retention. Still, now comfortably in the US top 20 top grossing charts, this should provide a good foundation for the five new titles Kiloo has in co-production.
16. Backflip Studios
Down 11
It's a remarkable demonstration of the power of a new theme within a well-understood genre when backed by a laser-focus on running a service: in this case that's a big monthly update.
15. Storm8
No change
One of the original social mobile games success stories from 2009, Storm8 recently announced some big numbers; 400 million downloads, 200 million players, and 10 million DAUs across its large portfolio of casual, core and casino games.
Indeed, it remains hard to keep track of everything the 175-strong outfit is up to given the different labels it releases under: Storm8 for midcore; TeamLava for female-casual; Shark Party for social casino; and FireMocha for hardcore. But tying everything together is its own integrated social network, which provide cheap user acquisition via cross promotion, enabling its games to get critical mass very quickly.
14. Gameloft
Down 7
Instead, Gameloft continues with a volume-and-scale approach to the market, with Java game sales in emerging markets remaining a surprisingly key element of its revenue.
13. Imangi Studios
New entry
In addition to working on their own games, the husband-and-wife team (now plus three staff) also found the time to help out Disney as it uses the addictive nature of the endless running gameplay to promote movies like Brave and Oz.
12. Gamevil
Down 1
Top performing titles included free-to-play social games such as Fishing Superstars and Punch Hero, which combined with the continuing expansion of its third-party publishing operations saw Gamevil sail past the 200 million download mark in December.
11. CyberAgent
New entry
The former is famous for card-battler Rage of Bahamut. Published on DeNA's Mobage platform (DeNA has equity in Cygames), the title has been downloaded more than 10 million times globally and has ranked top 20 in the iOS and Android top grossing charts since launch.
Similarly, Applibot's Legend of the Cryptids has been very successful on both platforms. The result is CyberAgent's mobile game revenues in 2012 were $290 million.
You can see the full Top 50 Developers of 2013 list as it's revealed here.