I propose you to use my RPG engine that I made in Unity since 2013.
With following features:
- Turn-based battle mechanics
- Enemy and NPC AI
- Locations with interactive buildings, loot boxes, doors, portals
- Terrain with objects and 10+ textures (desert, forest, seashore, steppe)
- Wide range of weapons (knuckles, 1-handed, 2-handed, distant, traps)
- All range of animations and 6 low-poly 3D models for the characters
- Armor
- Inventory
- Global Map
- Game time and Day / Night cycles
- NPC-satellites
- 10 random Mob groups
- New random Loot system
- Quest / dialogue system
- Levels, Stats, Ups, and character development
- Stealing from NPC
- GUI
You can download it here - [login to view URL]
All that I design myself, and I could use my scripts to develop your game based on the existing engine.