Alright im just starting to get into game creation.

I know the basic of C++ but nothing about rpg creation. I will be using Unity as a game engine and was wondering if i can start my game creation with the world. So ground, mountains, towns and all.

And then start working on the stuff like adding a player and then keep adding like inventory and such?

Sorry i really have no clue. Im going for a very simple 2d isometric rpg game with only a small maps and maybe 1 quest so i can learn and aventually i will keep building it bigger and bigger.

Not sure if anyone knows about good tutorials for unity and 2d iso game building.

Thx in advance

You should always start with the core gameplay. Prototype the basic game systems, test if they work the way they should work, tweak them until they're fun. Don't start working on the actual content for the game until the core gameplay is fun and the core tech is working, or you'll end up with a lot of content that needs to be replaced later.