OpenClonk – game and game engine

OpenClonk is a free multiplayer action skill game where you control clonks, small but witty and nimble humanoid beings.

The game is mainly about mining, settling and fast-paced melees. OpenClonk is also not just a game but also a versatile 2D game engine that enables users to create their own modifications.

It is often referred to as a mixture of The Settlers and Worms. The game encourages free play but the normal goal is to build a mine and exploit the earth from valuable resources.

Features include:

  • Multiplayer through the internet.
  • Many weapons and tools to chose from.
  • 3D rendering.
  • Revamped HUD (heads-up display).
  • Zoom.
  • Tutorials to guide new players.
  • Create your own scenarios, objects and campaigns.
  • Countless possibilities to create your own scenarios, objects and campaigns.
  • Versatile 2d game engine that allows players to create their own mods.

Support: Documentation, Forums
Developer: The OpenClonk Project
License: ISC License for the code and Creative Commons Public License for the media


Clonk supports its own scripting language: C4Script. Object definitions and scenarios can contain a script. Function calls made from scenario scripts are considered “global” calls. Function calls made within an object script are considered “local” calls.

C4Script uses a C-style syntax. It includes operators, variable declarations, compound statements, conditional statements (if) and loops (for and while).

OpenClonk is written in C++. Learn C++ with our recommended free books and free tutorials.

Return to Notable Games Home Page

Read our complete collection of recommended free and open source software. The collection covers all categories of software.
Share this article

Share your Thoughts

This site uses Akismet to reduce spam. Learn how your comment data is processed.