Nobody Loves A Beggar [Marketing Stories] - What Games Are
Ottway Ducard stashed this in Create
Most smart left-brained game makers would probably say that works for niches, but not mass market, and go back to begging. Most smart right-brained game makers, however, instantly understand this approach. They get that the mass market is not some big ball of chumps just waiting to be exploited with the right tactic: it's the middle ground between niches, where most people live most of the time.
Andrews' answer on this question of niche versus mass is interesting: Novelty effects aside, what he sees a lot is mainstream success coming from the fringes. Like the early Starbucks, the pattern seems to be that the marketing story gets going first in the fringe and then amplifies its way into the mainstream (for example: 50 Shades of Grey, a niche erotic novel which experienced this effect). What works for books should also work for games. You could use Amazon, Kickstarter, Indiegogo, Appdata or other sources as guides for topics. You could find out which ones seem to be viable.