<P> The company simultaneously developed five games, and the first one to be released for test market was Pets vs Orcs . It was not very successful, and another concept, Tower, was abandoned soon as well . However, in May 2012 Hay Day was published, and was quite promising in the test market . The game eventually became Supercell's first internationally released game . Hay Day was Supercell's version of Zynga's successful Facebook game FarmVille, an easy - to - play farm simulator . Supercell added to their farming simulator the ability to refine products, a production chain, and touch screen properties . The social aspect of the game was emphasised as well . The optimisation of the production chains had an important role in the game, and it could be sped up with in - game purchases . The game was published in Midsummer 2012, and it became a surprising success to the point the server capacity was not enough to support all players . There were also problems with balancing the game, as in the beginning all players had an oversupply of eggs, which made the in - game market depressed . The company solved the problem by adding more eggs as necessary ingredients in recipes . To avoid similar problems in the future, Supercell hired a data analyst who monitors the balance in the games . In four months, the game became one of the most profitable games in Apple's App Store in the US, and was one of the most profitable in the world for two and a half years . The game receives regular updates and is maintained by a team of 14 people . </P> <P> The employees of Supercell had a lot of experience from the video game industry . Lasse Louhento had started at Bloodhouse, and Lassi Leppinen was the chief programmer at Sumea and Digital Chocolate . Their team had spent months on a fantasy themed Facebook game when Supercell changed strategies . Leppinen and Louhento wanted to make a strategy game that would use a touch screen so playing would be as simple and pleasant as possible . The development of Clash of Clans took six months, and the game was released on August 2nd 2012 . In three months, it became the most profitable app in the US . According to App Annie, in the years 2013 and 2014 Clash of Clans was the most profitable mobile game in the world . The eponymous battle between the clans was added to the game as late as in 2014 . </P> <P> In summer 2013, Supercell started marketing collaboration with the Japanese GungHo: the companies cross-marketed each other's games in their own games in their own markets . As a result, Clash of Clans became one of the most downloaded apps in Japan . GungHo's chairman of the board Taizo Son flew to Finland to thank Paananen and later introduced him to his brother Masayoshi Son, the CEO of the SoftBank Corporation . Soon, they proposed a corporate acquisition which indeed happened on October 7th 2013 . SoftBank and GungHo bought 51% of Supercell's shares for 1.1 billion euros which is the largest price for a Finnish private company in history . In six months, Supercell's value had tripled, since in spring 2013 the company had sold 16.7% of its shares for 100 million euros . </P> <P> Both Clash of Clans and Hay Day were released in the summer 2012, and Supercell did not release a new game in almost two years . The designing of the third game Boom Beach started in the autumn of 2012, and it was released in 2014 . The new strategy game was released to the test market at the end of 2013, after which it went through large changes . The game was very successful in the US right after its release in March, but it did not stay at the top of the download charts for very long . However, it rose to the top 30 of the most downloaded iPhone apps after Supercell started an expensive marketing campaign in December 2014 . In 2015, the game surpassed Hay Day in the charts . </P>

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