The Box is a partial TF game created by passelel.

You and your brother are playing near your grandparents' house, when you discover a cave in the woods. As you explore the cave, you discover a small, ancient, green box, which seems to creep out your brother for some reason. When you open the box, you are sucked into the box and faced with an anicent, demonic evil that has been imprisoned within.

You must face the challenges of the demons within the box in order to avoid becoming one of them and letting them loose on the world.

This version includes the first challenge to be solved.