Someone — a single user — has played 10,500 hours of the historical strategy hit Crusader Kings 2, says developer Paradox Interactive. To put that in perspective, that's 437.5 days — or 40 percent of the total, actual, real time that has passed since the game's release three years ago.
Paradox Interactive included that factoid in a visual celebrating the three-year anniversary of the game's Valentine's Day 2012 launch. They count 99 hours as the average playtime for all of the users who've played the game to date, which is rather impressive in its own right, too.
Here's the infographic. For more on Crusader Kings 2, see Polygon's in-depth feature on Paradox Interactive, and how it made a winner that rose above the strategy genre.