![Top 50 Mobile Game Developers of 2011](https://media.pocketgamer.biz/images/19027/5208/top50devs2011logo_s660.jpg)
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Rockstar Leeds has been developing games since 1997 and found its rightful place with the Rockstar family in 2004. It was responsible for Grand Theft Auto: Liberty City Stories, the bestselling game on the PSP system in 2005, and also brought it to the PlayStation 2 in June 2006.