A former Valve dev revealed how, while a VR version of Half-Life 2 was being made, a single metro cop's toe created a 'time-travelling' bug that softlocked all versions of the game

One of the coolest things about Half-Life 2 is its physics engine, but as anyone who has played a physics-based game will know, even the best-in-class tech is prone to quirks here and there. Valve's legendary narrative…