It's a great job ! How you design monsters and NPC ?
Thank you! :)
Glad you asked.
I’m working on a bestiary but you can easily create monsters and npc the same way you create your PG, just change the starting dice to match the npc “stats” and gear them up as you like.
For example, very weak enemies such as kobolds could have all d4 and small weapon. Goblins are much the same but with a d6 in Agility and a slightly better equipment.