Very cool! Of course, it doesn't get the stuff outside of debian (steam, HIB), but here's what I managed to get out of it for "games people are using", most popular first:
It's interesting to see the long tail of games being run. I'd be interested in some of the time-spent information you get out of steam, and whether this is just 68 people having run all these games for testing or if many people are playing different stuff, but it's at least more information than I thought we had. It'll help me balance priorities of bugs among these games.
None of this GL stuff is as popular as solitaire, though.