Development of "Clonk Rage" has been continued until May 2014. In 2014 the forums of Clonk have been closed, and on end-of-support of all available Clonk versions, their engine source and game content have been released under open-source licenses to the community. Specifically, Clonk 1 to 3 Borland Turbo C++ code, Clonk Planet v4.65 & Clonk Endeavour v4.95.5 (engines only) VC6 code and Clonk Rage's current development prototype were released under the "Clonk Source Code License (ISC License)".