Like the previous Clonk titles, OpenClonk offers countless possibilites to create your own scenarios, objects and campaigns. Since Clonk 4, one of Clonk's most remarkable features has been it's extensibility. The complete content is scripted in C4Script, Clonk's own powerful scripting language, has been developed further since 1998. Now, it feels pretty much like a typical C-style scripting language. If you know other programming languages, you will have no problem to familarize yourself with C4Script and if you never programmed before, it can be a good introduction and practice to programming.
Everything about C4Script and the game data is documented in our C4Script Documentation.