For instance I see a lot of best selling gaming as focused on combat which is fine.
The games not focused on combat are the social games of social media which are an endless pit of app time wasters.  They are on the level of minesweeper and tic tac toe
Then there are word games which my wife is into atm.  The word games take gaming tic tac toe and move it up a notch.
From where I am now there are games that fit my mood, temperament and challenge level at the time.
For complexity the game is Entropia.  For light play time fillers, the word games and Facebook games engage me.  Engaging content without being sold something is the lure of many RPGs.  Facebook games, and app games on phones cannot say that.  Most of the app games are riddled with ads.  I guess that;s fine if you're an app developer, publisher, and/or distributor.  Does all gaming need to have ads to make them viable?
I see ads as necessary to keep some games developed and emerging.  Many more games are no longer stand alone fun.
Someone is trying to make a buck off them and collect some revenue somehow someway.
Can that be the impetus behind every game?  I see many games as works of artistic expression.  Money gets layered in either as an afterthought or original intent.  As long as a game gets made for me, it's all good.

The free trade server of Norrath,  From the description it seems more geared for subscribers and to please them,  The people who actually pay money to play.  Being able to trade almost all items is cool.  That is a big deal because whenever there are more opportunities open up to trade the ingame economies get better and that adds to fun.  People like looting and trading multitudes of items.

Now then the idea may be to combine extensive trading with app games.  A game geared to nothing but trading.  Farmville did a good job of being casual with trade elements.  What if there were a way to create trade and nothing but trade?  Groups of resources acquired through the game, then traded among players.

As for consideration of how to go about creating games the idea occurred to me to use bitcoin as the game's base currency.  Because bitcoin is such an odd form of transfer, a game based around it would need certain parameters established and brought into the game.  Such a game would be subject to the price changes of bitcoin.  As it takes considerable effort to turn bitcoin into dollars it seems such a game should have no problems keeping the money in the games' ecosystem.
Further bitcoin allows that if the money's not there, its not there.  No stack overflow errors and hyperinflation.  I believe such a game would be subject to hyperinflation if there were a hole in the game logic.  However it could be wrangled so that doesn't happen.  Such a game would need to be air-tight on how it doles out loot, stars, rewards of one sort or another and the transfer between players of the bitcoin loot.  Could Facebook or other social media be tied in to bitcoin rewards and trade?

This also brings me to are there games on Instagram?  A way to layer in picture games seems the first obvious path to take.  Then also with the picture game of Instagram layer in some bitcoin.  Doling out rewards in bitcoin still seems a problem because who decides how much and where the money goes?

I think for a developer to risk whatever they are going to risk and cap how much money can be doled out is one restrictive parameter to keep the game in check.  After each try does promising bitcoin for successfully navigating a game mean there is a liability to pay?  It seems that to promise bitcoin does not create any liability.  The promisee just wouldn't pay.  So that then creates a trust issue for a game and whether that developer will pay up or abscond with the money.  The developer who jets with the money of course is going to lose customers and have no one playing the game.  The developer who pays up fairly and regularly would have a successful game.  I dont think it would take much to create
such a game based with current technologies.  This is a synopsis of my current thoughts on gaming today.