There are so many, certainly I'll forget some...

Most memorable games story-wise, especially these moments:

The Witcher 3 - Battle at Kaer Morhen and the death of Vesemir (didn't finished the game yet though)

Mass Effect - ME1: Choosing between Ashley or Kaidan / ME2: Suicide final mission

Red Dead Redemption - John Marston murder by the end

Final Fantasy X - Discover that Tidus is a fayth

Star Wars KotOR - Discover that I was Revan

Star Wars KotOR II - No specific moment but the whole story is one of the best in Star Wars lore, even better than KotOR I. PS: you have to play it with story restoration mods to know what I mean.

In terms of gameplay, these games really impressed me (no specific order):

GTA V, Splinter Cell: Blacklist, Titanfall, Shadow of Rome, God of War I, II and III, Counter Strike 1.6, Halo (all games), Dota 2, Jedi Knight (all games - especially the Movie Battles II mod for Jedi Knight 3: Jedi Academy), Dark Souls...

Even some oldest games, like: Unreal Tournament, 007 Goldeneye, Star Fox 64, Zelda (Ocarina of Time, Link's Awakening), Sonic 2, Mortal Kombat III, Doom 1 and 2, Duke Nukem 3D, Pokemón Red...

Hey GameSpot, did you know about this??

In Halo official forum: WARZONE DONT WORK (SOUTH AMERICA, AFRICA,AUSTRALIA)

I know this is an US gaming news site but, it's still all about the news I think...

I'm from Brazil, I own Halo 5 but can't play Warzone, matchmaking simply does not work since game's launch... No official response by 343 or Microsoft about this yet...

Maybe if the news could hit the fan in a larger scale, 343 or Microsoft could do something about it... Don't want to ask for a refund just yet...