OpenClonk is a 2D "multiplayer-action-tactics-skill" game in which you control clonks, small but witty and nimble humanoid beings. The game is mainly about mining, settling and fast-paced melees. Gameplay could be described as a mixture of The Settlers and Worms. In a simple 2D antfarm-style landscape, the player controls his crew of Clonks. The game encourages free play but the normal goal is to either exploit valuable resources from the earth by building a mine or fight each other on an arena-like map.
While originally shareware, it was liberated in 2009 under a BSD style license and its media is licensed under the CC-by license.