I kind of consider sims my main game, but then again recently I've been on a sims break... or rather was until I started a side project in a new save. Anyway due to this my answer is between playing other games occasionally vs. playing lot of games. Sticking to core games I still think is not me because I buy new games that I play. What I play depends mostly on my mood and what I feel like playing that particular day :) Recently I've played Ni No Kuni Wrath of the White Witch and Don't Starve Together. I'm looking forward to play Outer Wilds when I get in the mood.
