1. WoW pathing flaws World of Warcraft Thijmen Bink MMORPG

2. Kiting within The Stockades

3. What and why it goes wrong NPC walks all the way around to get up a tiny ledge  It can't walk up vertical sections, even if small  It can't always attack up a vertical section, even when touching the player Characters collide freely  No collision detection (but game would be impossible with)

4. What and why it goes wrong NPC runs/ports through beams  Beam is mostly eyecandy, not a solid wall segment  Ports because otherwise it would be standing within beam  NPC collisions seem to be calculated with a point or vertical line