Oh, there's a stick in my path? I'll go around. What's that? I'm low on health? Here, take a rest by the fire. While most logic used in video games is based on real-world logic, video games have been known to take some liberties when it comes to world-building. A slightly discolored wall? Oh, that's a secret passageway. See something you want to pick up and store for later, walk right over it, and your feet will do the job of your hands. Entering an old cave that hasn't been visited for over a thousand years? It's so nice that the candles left by the last visitor are still burning.