Hey everyone, so this is something I enjoyed in Rift, and warhammer online public quests in that periodically in a zone a large monster event occurs. I'm unsure of unity but in rpg maker there is the tool to make these events based on map triggers. So like in serbule hills if no ranalons are killed in 2 hours then an event starts, maybe it global shoots "a ranalon invasion is occurring in serbule hills" and like the spider event in serbule progressingly harder and larger amounts of ranalon march towards the inn. If they arent repelled then the NPCs despawn for awhile kinda like how the calligraphy trainer goes fishing during the full moon.

I just had a bunch of fun during the spider event and 8t would give the world another aspect of feeling real and that the players exist within a socio political dynamic. Maybe provide favor rewards for the NPCs I dont mind too much about the rewards as it sounds super fun.