EarthBound and not because it was recently re-released. I believe I've gone on record on these very forums that I usually, or at least used to, play the game through completion at least once a year. Before the re-release on the Virtual Console, I played this game about 2 years ago on my smart phone via emulation and was in the last quarter of the game when an android update reset everything and the emulator app I was using was no longer available, thus losing my progress.
This game is like a part of me and always will be.
The only other game I can think of is a newer entry into my personal Hall of Favorites and that is: Rune Factory Frontier! After two season long hiatus from the game, I started playing it again recently, right back into the grind trying to level up my crops and special flowers in order to make the highest level armor in order to take on the final boss. Is it necessary? No, seeing as I only recently took on the Snow Ruins boss with equipment I've had for practically 1 whole game year, though I used a lot of heal items and beat him by the skin of my teeth; but I'm SO determined to make a level 10 Black Robe and craft the best possible sword in order to whoop some parasitic ass!!!
In other words, RFF is my gamer crack.
What will I do once I'm done? Perhaps relegate the game to pass-time only versus putting in serious hours into it, or retire it for Rune Factory Tides of Destiny, or one of the DS games.
Oh and Mega Man X. I can breeze through that without blinking and its satisfying every time. X2 is also great but X is just .01% better in my opinion.
A Link to the Past used to be higher on this list but honestly I haven't played that in ages. /zeldafanshame