Cattails, which I have 1465 hours in
Though, a lot of that is overnight AFK, so take that with a grain of salt
Second place is Terraria, with 414 hours. That one is a lot more accurate since I never did overnight AFK with Terraria
One of my drawing weaknesses is drawing distinct body types. It's a good idea to practice your weaknesses to improve them, so here's a little piece I made to practice that, featuring two of my characters. Cats, of course because I'm predictable