Metric Definitions

Name	Definition
Unique Players	The number of unique players.
Stickiness	The percentage of users, returning and new, who returned to a game in a given time period.
Visits	The number of times players entered a game.
Average Session Length	The average duration of time (in seconds) between a player joining a game and leaving the game.
Total Play Time	The total duration of time (in seconds) players were in a game.
Average Play Time	The average duration of time (in seconds) players were in a game.

Sales Revenue Metrics

Name	Definition
Revenue	Total spent (Robux or USD) by players. USD is calculated from Robux using the DevEx conversion rate.
Estimated Net Revenue	Revenue calculated by estimating Roblox’s and asset creators’ cut using this formula: `Dev Product Revenue * 70% + Game Passes Revenue * 70% + Assets Revenue * 40%.`
Avg Revenue per Paying Player	Revenue divided by Paying Players.
Avg Revenue per Player	Revenue divided by Unique Players.
Revenue per Visit (RPV)	Revenue divided by Visits.
Paying Players	Unique Players who have made a purchase.
Paying Player Percentage	Paying Players divided by the number of Unique Players.
Total Purchases	Total number of completed purchases.
Avg Revenue per Purchase	Revenue divided by Total Purchases.
Avg Purchases per Paying Player	Purchases divided by Paying Players.
Avg Purchases per 1,000 Player	Purchases divided by players multiplied by 1,000.
Total Prompts	Total number of purchase prompts. Excludes prompt where a purchase is not possible (ie. the product is not available for purchase).
Avg Prompts per Player	Total Prompts divided by Unique Players.
Prompt to Purchase Conversion Rate	Total Purchases divided by Total Prompts.

Ad Revenue Metrics

Name	Definition
Impressions	The total number of times paid ads were seen by players. Learn more about valid impressions here.
Reach	The number of unique players who recorded at least one impression on a paid ad.
Frequency	The average number of impressions recorded per player.
Total Exposure Time	The total valid exposure time (seconds) recorded by players. Learn more about valid exposure time here.
Exposure Reach	The number of unique players who recorded at least one valid exposure.
Average Exposure Length	The average time (seconds) of all valid exposures. Learn more about valid exposures here.
Fill Rate	The rate (percentage) of when a paid ad is shown.
Amount Earned	The total earnings (USD) in a time period.
Average CPM	The average CPM (USD) in a time period.

Impressions and Exposures

What is a valid impression?

An impression is 10 seconds of cumulative valid exposure time. For example, a player can view an ad for 5 seconds, look away, and then view it for another 5 seconds for a total of 10 seconds of cumulative valid exposure time.

There are also additional metrics available to see 2-second impressions and 3-second impressions.

What is a valid exposure?

A valid exposure must be at least 0.5 seconds with a viewing angle of less than 55° and must cover at least 1.5% of the screen. Exposures are excluded from players while idling for more than 10 minutes.