SOTN :D

Rollercoaster tycoon (2)

Soul Reaver 2

Ratchet and Clank 2 aka Going Commando.

Counter Strike

Dota 2

The Elder Scrolls IV: Oblivion and The Elder Scrolls V: Skyrim

BLACK (no, no Black Ops, just BLACK)

Batman: Arkham City

Timesplitters 2

Second fav is the game relating to my pic :)

Dragon Age: Origins, best RPG ever made.

Age of empires II (old version) + rise of nations + gta series overall + skyrim

Minecraft

Mafia II is the best game ever

Grim Fandango

It's a tie between Doom 2, Dishonored and Thief 2. I know three is cheating but I really honestly can't decide.

Super mario sunshine, dishonored and skyrim

You can have more than one favourite

Just Cause 2.

Also, these are the games I enjoyed the most:

ACTION
Half-Life 2 (overrated, but still very good)
Saints Row: The Third
Sleeping Dogs
Mafia II
Tomb Raider (2013)

PUZZLE, RPG, POINT AND CLICK, OTHER...
Portal 1 and 2
The Elder Scrolls V: Skyrim
Bastion
Dust: An Elysian Tail
Fortix
Blackwell Deception

RACING
Grid 2
Need For Speed: Hot Pursuit
Driver: San Francisco

Mass Effect - awesome game - very interesting sci-fi rpg with brilliant story (and with so many opportunities to change the story and play as a good or a bad guy).

Pokémon :3
I ain't givin' a freak 'bout you reactions ! :D

Pokémon :3
I ain't givin' a freak 'bout you reactions ! :D

It's extremely difficult to pick one favorite after so many years of gaming. I think I'm going to go with Neverwinter Nights, though, since that game and its mods ate up the largest chunk of my life. (I'm currently doing a replay of the Undrentide campaign.)

Final Fantasy 7