Metaverse Shopping Demo

Target:
Build a metaverse e-Shop for visitor where user can login to experience:
- Create a 3D Natural-looking Space which is as close to the Real World as Possible by Unity/ Un Real
- Lifelike Shopping without Going out
- Interact in a Unique Immersive Environment

Scenario:
- Fashion shop with clothes, hat, etc.
- Some product layout and promotion shelves like we go shopping at usual shop
- Some NPC (Non-Player Character)
- Visitor can explore the shop or pick-up a cloth / click to view product details (size, price, etc.)

Tools:
Unity, Unreal or similar

Others:
- Please provide your design and approach first
- Please suggest how, where to deploy this demo (do you need our host or?)
- Please suggest what back-end resource is needed for supporting how many concurrent users login/join?
- Timeline to complete