The best game you have ever won

Tomb Rider 2013

Skyrim.

Tomb Raider, Thanks mew <3

Of the ones I played...I think Shovel Knight (ninjaed it on a facebook keydrop).

Speedrunners.

I entered thinking the game looked like it might be fun, but when I won it and started playing... wOW! Speedrunners is an awesome game, and I've been the cause of several others buying copies. That was a truly delightful surprise!

Magicka Collection.

Probably The Witcher III although I can't test that theory yet.

Or Middle-earth: Shadow of Mordor but again, I can't say yet. Both look amazing though.

Guacamelee: Gold Edition.

Saints Row IV from gameminer

Counter-Strike: Global Offensive

Well...Magicka. Haven't won any AAA game

Probably TBoI or Alan Wake's American Nightmare. Nothing special.

GTA III and Civilitation V

Hmm Don't Starve or Terraria...

Garry's Mod

THQ Collection

the witcher 3, stronghold complete pack, Red Faction Collection, Killing Floor Bundle. Oh and me and my brother won 2 cs complete packs from youtube video :D..

Mount & Blade: With Fire & Sword and then Bioshock 2. The Mount and Blade one, Ive been a fan of the series for a looooong time. Really made my day to win it. And Bioshock 2 I won when it was in a bundle. So I saved a little money for a game I really wanted (only needed to buy the first tier for Bioshock, instead of the mid tier for Bioshock and Bioshock 2).

I only won nosgoth from a tremor giveaway

I only won nosgoth from a tremor giveaway, never tried it yet. Is it a good game?

XCOM: Enemy Unknown and Don't Starve.

Dwarfs!? :((

Bioshock 1

Sid Meier's Civilization III on Gameminer. Also win two another games in one day with Civ3, but from this moment, I don't win anything :)