Simple games, difficult games, old games.

Adventure quests simply merged with the other games of the time. Quite honestly, they basicially were stories where you just mashed various objects together and hoped that they would create something useful to get through the stage.

A great lifespan

[COLOR="RoyalBlue"]Which games? Most older console games are fairly quick to beat, the only difficulty is in continually having to replay them if you lose enough lives. Gears of War is just one of many games, and besides, the FPS Genre is generally more geared towards multiplayer - not long, epic, quests.

I don't get what you mean by awesome playability either. [/COLOR]