LogFAQs > #961330351

I think once you get a large enough sample size, the rankings for most of the games won't change dramatically. Perhaps, December releases with small marketing campaigns are at a disadvantage, but for the other months there's enough time for word of mouth to make an impact.

However, with the rise of mobile games these things will become a bit more common. Among Us and Coin Master are big examples of games being unknown for years before becoming huge hits.