I believe the problem is that we lacked to explain how to interact with the different objects.
to interact with boxes you need to press "E"
to interact with torches/Goals/Portals you need to press "Right Click" on top of the object
this issue is going because we struggled choosing which kind of interact interface we should use.
we are going to work on choosing one and fixing this issue ( or at least explain it better to the users)
but according to your question no the game does not end there we have a start and a finish but seems like we made it really complicated to figure it out.
thanks for your constructive feedback it helps us a lot to figure out all the issues we need to fix! :)