Every few months I see Open Clonk in my gaming-folder and get the urge to play it. Then I start the game and quit after ~4mins. There are no games hostet and no engaging single player scenarios.

So here is my suggestion:   What if there is one day in the week where everybody in this community plays Open Clonk, so you can be sure, that you are not playing alone.  This would give many Clonkers the opportunity to test the fun things in OC, like the promising looking combat system. And it could also revive the development of new scenarios and work on the engine. Because nobody wants to put many hours in a project, that nobody is ever gonna to play..