Conventional wisdom has it that most computer games are purchased by adolescent males.
Because of this, game companies produce games primarily for this market. This creates a positive feedback cycle so more and more games are written for this audience. Hit titles are inevitably followed by a raft of clones and near-clones, sequels and derivatives. The blockbuster hits of the past few years have been 3D action games, spurred by the success of Doom, and strategy games like Civilization, focusing on war and conquest. Perhaps, the game industry simply does not know what sorts of games appeal to women.