Today, in a post on the Android Developers Blog, Google announced two new tools that might be of interest to quite a few of the game developers out there. Among the releases is a new open-source 2D physics library called LiquidFun and a Unity plugin for adding Google Play Games support. These releases coincide with the news of additional game categories coming to the Play Store in February, which we covered earlier today.

LiquidFun is a rigid-body physics library that does particularly well with fluid mechanics. It's based on Box2D, a popular open-source 2D physics engine written in C++ that has found its way onto quite a few platforms and spawned a few similar engines over the years.

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