If you missed some of the best figures from the Mobile Games Forum, either because you weren't there or because you were too busy networking, don't worry. GAMESbrief has you covered.

The Social Games Summit last month was packed full of juicy stats. Take a look at some of the most interesting and useful figures below.

This post was originally published as part of a regular series on gamasutra. It is reproduced here with permission. Retention is the key measure of success for a free-to-play game. This fact should send a frisson of fear...

Retention rate, churn and duration all measure the same thing: how effective are you at getting users to come back to your game.

I’ve been doing some analysis of Facebook games over the past year. In particular, I’ve been looking at the engagement rate (DAU/MAU) for Facebook games. Between December 2010 and September 2010, engagement has fallen by around 25% for...

At the Gamification Shoreditch conference last month, Raf Keustermans said that Zynga had a duration of only two months. That means that the average user only stays playing any one of its games for two months before...

Zynga understands how to offer players the choice between different ways of playing the game. In Cityville, it has elevated the presentation of those choices to a fine art - and every choice advances Zynga's business model