Best games you've played?

all mass effects of course

velvet assassin

Baldur's Gate Saga, Planescape Torment, and Fallout 1 & 2- what can i say, i'm Black Isle Fanboy

DEFINENTLY Half-Life 1!
Right now im playing Half-Life 2 and it's episodes, fantastic!
Half-Life 3 for 2013! :D

Mount and Blade: Warband and Civ 2, 3 and 4. One of the best value games I've play is Dungeons of Dredmore.

Beyond Good & Evil for me. I've played it late 2005 and still is the title that first comes to my mind when someone says "favorite".

Street Cleaning Simulator

I had really fun playing Hotline miami...

Fallout New Vegas is my favorite. The world is very large, there is a ton of quests, and it can be replayed a few times because there are so many ways to play and so many endings. Also, there are many good mods, which are very easy to install. I have played it for 159 hours, and I'm still not tired of it.

FTL. Age of Empires (original 1 2 and expansions). Command and Conquer Red Alert 2. Worms Armageddon. Sid Meiers Civilization V. Just Cause 2. Red Faction Guerilla.

Dark Souls, Fez, Micro Machines V3, Guild Wars 2, Borderlands 2, Final Fantasy 6, Shadow of the Colossus, Ico, Half Life 2, Elder Scrolls 3 - 5, Zelda a Link to the Past, Mario 64, Mario Galaxy 2.
And most definitely a bunch I'm forgetting as I've been gaming quite a long time.

There is no best game for me, there are only favorites, but i mainly post Diablo2 in such topics....

Portal2, Skyrim, Stalker series

In no particular order and for varying reasons...

The Walking Dead, Gauntlet Legends, Super Smash Bros. Melee, The Secret of Monkey Island, BioShock Infinite, The Beatles Rock Band, Psychonauts, To The Moon, Star Wars: Rogue Squadron, Halo 2

Gothic 2 and The Last of Us

The Walking Dead (Telltale's one, obviously) and Half-Life 2 series

Pfff,to many games to choose from :),now i'm obsesed by Dota 2 (for a year now :) ),but overall i really loved the GTA series,also Marc Ecko's Getting Up (probably my favorite,i still play it from time to time),World of Warcraft (Vanilla and TBC),etc,etc.

bioshock infinite for sure. and half life 2

Half Life 1. And Portal 2. And Beyond Good & Evil, and Mirror's Edge. Those 4 are "must" ones

Deus ex 1 & 3, Mass Effect Series, Divinity 2, Fable:TLC

Mafia 1

Quake I and Civilization I

Team Fortress Classic!!!!

Deus Ex, System Shock 2, Half-Life series and Fallout 2 are my alltime best.