This document discusses challenges and strategies for developing free-roam virtual reality experiences. It outlines key challenges like motion sickness from frame rate and rotation speed. It recommends mapping the real world accurately with paths, doors and warnings. It also suggests roadmapping development like Spotify's release process and conducting frequent beta tests with spectator screens to gather feedback over weekly builds. War stories describe common issues in testing like throwing up or falling over. Tips include starting beta tests early and often to rebuild levels easily and testing per emotion like fear, excitement and nostalgia.