Why Do Games Sell?

simoniker writes "Game designer Pierre-Alexandre Garneau has published a new article compiling a list of factors that make games popular, and although he notes: "The test assumes that the game is good — if it's bad, chances are it won't sell no matter how high it scores on this test," his comparison of GTA 3 and Psychonauts tries to apply common-sense reasoning to why one sold well and the other did not."