I'd say four games:
God of War 1: the whole game was just awesome. I was a fan of Greek mythology at that time (I still am but I no longer read about it), and you could tell the game was made by people who knew Greek mythology. And it was also the second videogame I had ever played, after Pokémon Silver.
Dark Souls 1: I was going through a dark place in my life, and Dark Souls taught me that as long as you're not dead, you can keep trying and get better. (Even if the Four Kings boss can go [
insert appropriate four-letter word] themselves). Plus the final boss, his aggressivity combined with the sad piano music... Probably the first time a videogame moved me.
Skyrim: everytime I remember Skyrim I get chills, I love this open world, I love heroic fantasy, I love mods,
I love fighting bandits with four bimbo followers...
Dark Souls 3: After playing Dark Souls 1 I imagined several bosses, and two of them were implemented in the game in a better way than I could have imagined. When I fought them I was in awe, and I knew Dark Souls 3 would become my favourite game.
Have you ever been disappointed by a videogame?