A closer look
You would think a massive industry could conquer a simple staircase, but absolutely not. Modern physics systems can calculate the exact trajectory of a thousand exploding debris fragments, but the moment a heavily armored protagonist approaches steps, they turn into a toddler on ice. Instead of modeling complex foot placement, games usually just wrap an invisible ramp over the geometry. This saves computational resources but results in your character hovering awkwardly or vibrating wildly if the calculus gets confused by a sharp edge.
