Still 15 games, though I didn't realize that some of those games are the same game, so technically 12 games.
Crusader Kings 2 surpassed Dota 2 as most played at 155 hours.
Making moves! Now I have 24 games, but 5 of them are the same game, so now 19 games. 7 whole new games!
Crusader Kings 2 now at 315 hours, Crusader Kings 3 joins the fray at 100 hours.
Passed my 10 year anniversary :).