Karst is a 3D first-person puzzle game set in a cave. The premise: you fell in, and you need to find a way out. The mechanic: this cave is home to a series of unusual crystals, each of which seems to have its own unique effect. If you’re clever, you can use these crystals to progress through the caves – if you’re not, you’d best get used to not eating.
One of the crystals that are formed in these caves, the repeller has the property that it pushes away everything else.