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The Thirty Day New User Retention report tracks the percentage of new user cohorts who return to the game on subsequent days. A Cohort of players is defined by grouping newly registered players on a given day (Day 0) and their retention is tracked over a 30-day period. Cohort size is determined by the number of players within it. The example report shown below, was generated on 2/5/2018. On 1/6/2018, 39,132 new players created accounts in the example title. Thirty-day New User Retention Report Table Since Day 0 is an initiation date for a new Cohort, this column always has 100% retention rate. Then 33.84% of those players logged in again the next day, 24.64% in two days later, and so on. 10.84% of the Cohort returned on the 30th day, which corresponds to 2/5/2018. For additional details, see Metrics and Terminology.

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Populating the report

To populate this report, you must register a player and then have them log in for several days in a row at least once. This, however, will produce trivial results, (with 100% retention for each day). Throwing more players into the process and skipping some days will produce more interesting results. The following API calls may be used to log in: To register a player you may use the following API calls: You may also use the following API calls to register and log in simultaneously if the CreateAccount flag is set:
Last modified on October 29, 2026