Hi,

i searched and there wasn't any good article or book on making an RPG game , or maybe i didn't search well

** if we're talking about the storyline, gameplay or character upgrade style, state transition/mix from story to battle (visa-versa),

so i think maybe we can learn from already existing games, to catch the concepts.

we play the game, at the same time we're studying anything inside the game as well.. (one easy way)

While i like what norman wrote, i think there are a few common practices among most (not all!) Rpgs.

Most rpgs provide a mechanism for the character to get stronger over time.

Most rpgs are built around decision optimization.. That is, many similar but unequal choices that lead to a similar outcome... Decisions as simple as whether to go around a tree to the left or right, or as complex as which tech tree to choose in character development.

One of the better books ive seen on the subject as it applies to conputer games is this one:

http://www.amazon.com/Massively-Multiplayer-Development-Charles-River/dp/1584503904

A good starting point is to pick an RPG you like, emulate most of it, and add one wrinkle of your own.

Most RPGs relies heavily on a database.

So you need something that can store information and retrieve it easily.

Also, the storyline is always important. So you need a way to handle conversations: topics, conditions, responses, options..

This article about Pillars of Eternity is worth a read, because it is about how Obsidian has managed to create a great RPG by bending the standard rules a bit to make it more interesting and fresh:

http://www.gamasutra.com/view/news/241669/Novelty_out_of_nostalgia_Josh_Sawyer_on_Pillars_of_Eternity.php

i searched and there wasn't any good article or book on making an RPG game

This is because asking 'how do i make an RPG game' is like asking 'how do i make a vehicle i can ride'?

You can keep it simple, strap some wheels to a board of wood and make a soap box car, and be done in days, and technically it's still a vehicle, or you can spend years trying to build a train.

In the end, both are vehicles and you can ride them.

You need to think exactly what you want from your RPG game, break it down into small problems and solve each one in turn. Some might depend on others, and some once broken down will be so trivial you can solve them in an afternoon. Others you might need help with, but this is why there are forums like this one :)

Good luck!

A good first step is to work on the "small". What will it be like to play for 10 minutes?

Will the player be grinding monsters? Exploring vast terrain? Following story dialog?

Implement that, play it for 5-10 minutes, then expand the scope and repeat.

The best way learn how to create an RPG is to PLAY an RPG; and I don't mean a Computerized RPG (cRPG) I mean a good 'ole Pen and Paper (PnP) RPG.

Long before computers, I was playing, creating, and DM'ing AD&D games (Yes, dice and all). That is what will give you the foundation for applying the concept to computers. I would highly recommend that you hit Amazon for some AD&D books; Dungeon Master's Guide (DMG) and Player'Handbook (PHB) at a minimum. I am particularly fond of the 1st and 2nd editions, never really got into the 3rd Editions; they just struck me as too "watered down".

As far as fun.... If it's fun to you, that's all that matters.