Dim3, also known as Dimension 3, is a freeware open-source 3D game engine created by Brian Barnes. It has been chosen as a staff pick for OS X development software by Apple. and featured as one of their "hot game building tools." dim3 has an entry in DevMaster's 3D engines database.
dim3 uses OpenGL for rendering, JavaScript for scripting, XML for data and Simple DirectMedia Layer for resolution switching, input, and sound.
Read more about Dim3: Components