Okay, thought kinda more about it.

Plot of the game: Your a pot head that decides to try sell pot in order to make a smoke.

Each game "tick" you will need to smoke a certain amount of weed (maybe later allow you to choose how much you have, and you can get withdrawal or throw a whitey/greeny, maybe have an adictivness level and it goes up as you grown more pot meaning you need to give yourself more pot.

If you cannot have a smoke one night you loose the game, so the idea is to make money but make sure you always got a smoke.

How to get weed:
Grow it - you will need money to buy certain equipment and different seeds, you will get different ammounts and it will take a certain number of ticks depending on the method and strain.
Buy it - you will meet people in this virtual world and talk to people and can buy it off people, start buying in small amounts until the dealer trusts you. (Maybe if you buy of another dealer and get caught it could start some gang shit or summat).

How to make money:
Selling pot:
You will go to an estate or area and have a reputuation level, you will have to login and click your pager/phone when you want to sell weed when someone contacts you, if your not logged in then no sale.
As your reputation in an area increases (the better weed/better deals and being avalible will determine this).

When selling weed you can decide what weights and prices you sell certain weed at.

Thats about all i can think of atm.

LoL