Terraria Can Travelling Merchant Spawn During An Event 6 days ago. He won't spawn during Events (except Rain, Old One's Army and Slime Rain). He does not require his own House in order to spawn, and will. Mar 12, 2016. For Terraria on the PlayStation 3, NPC Guide by Woodis. If she is killed before she is freed she will spawn elsewhere in That means Echo Park becomes inundated with…