OpenClonk 2D Rendering Engine
OpenClonk is a multi-platform, open source game engine, developed by OpenClonk Developers in 2010. OpenClonk is not just a flexible 2D scene game engine but it is also a game. OpenClonk engine is licensed under ISC License and the game content is licensed under the CC BY-SA, CC BY and CCO. OpenClonk is written in C++. It developed games for multiple operating systems which are Windows, Linux and OS X.
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