Analytic group Playnomics today released its Q3 2012 user data report, revealing highlights about the play habits and churn rates for social game players here in the United States. The most eyebrow-raising figure to come out is that 85 percent of new social game players didn’t come back to a game after the first day.

The study also revealed about 95 percent of all U.S. players acquired between July and September were inactive by the end of the quarter. Among those users who leave social games, women churned at an undisclosed higher rate than men. That said, women also play social games longer than men before they quit.

Those people who don’t churn can actually be identified early on, since Playnomics says these folks tend to play twice as long on their first day as churners. Also, players are most likely to play on Saturdays, but will play the longest on Mondays. Fridays and Saturdays are when games monetize best, Finally, the state of Oregon had the most engaged players in the country and the Southeastern area in the U.S. had the least engaged.

Playnomics’ user data report provides each player with a score based on attention, loyalty and intensity so developers can glean a better understanding of their player base in order to retain users.  You can check out the rest of the study’s results here.