Crapht Box

Crapht Box is a Fantasy Physics Sandbox. You can craft your machineries with a variety of elements; program your own disks; and edit your scene with built-in tools.

Crapht Box offers necessary physics elements for framework of your machine construction, sensors/dynamics for input/output, and chips for circuit logic. Programming skill is not required, but you can use the beginner-friendly Wren or Lua language to write something as you like.