Social games news roundup: Kabam’s making more money away from Facebook, Square Enix is delivering great games to your browser and Amazon’s Appstore comes to Europe

Not even 30 percent of Kabam’s money comes from Facebook — Speaking to GamesBeat, Kabam CEO Kevin Chou revealed that between Kingdoms of Camelot: Battle for the North being such a huge hit on the iPhone and its income on Kabam.com, less than 30 percent of the company’s revenue comes from Facebook.

Square Enix’s new service delivers HD games to browsers — Square Enix this week announced  Core Online, a new technology service designed to let users play HD console quality games on their web browsers. The system supports Chrome, Firefox and Internet Explorer and also allows free content to be supported by video advertisements (which users can skip by purchasing levels or games).

Amazon Appstore invades Europe — Amazon’s Appstore for Android arrived in Europe this week, allowing customers in Germany, Fance, Italy and Spain to purchase apps for their Android phones and tablets. Amazon tells us European customers will have access to localized content and mobile stores for their specific countries, the popular “Free App of the Day” and personalized recommendations.

Rovio rumored to working on Angry Birds spin-off — Uber Gizmo is reporting that the next game out from Rovio is going to be an Angry Birds spin-off called “Bad Piggies.” The developer already set up a Facebook page devoted to the pigs from Angry Birds and features a vague press release written by the green-colored swine.

Over 60 percent of Japanese social gamers regret in-app purchases — Nearly two-thirds of Japanese social game players say they regret spending money on virtual goods in their games, according to a recent survey conducted by FastAsk. However, nearly 70 percent of these players say their spending habits haven’t changed since the government forced developers to eliminate kompu gacha tactics from their games earlier this year.

Pharmaceutical company gets in on the social game scene [Launch] — Pharmaceutical company Boehringer Ingelheim is launching a Facebook game called Syrum. Players run a pharmaceutical company and will need to develop drugs and conduct clinical trials. The game already has a website, but isn’t set to launch until September.