You may remember that in the first Humble Indie Bundle, World of Goo was not open-sourced. Well, there is an active open source clone called OpenGOO being developed. It uses OpenGL, Box2D and is GPLv3-licensed.
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| Basic layers of level creation in OpenGOO |
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| A Shotgun Debugger level viewed in Inkscape |
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| SuperTuxKart level editor (hint: it's Blender!) |














