Count me in. =)

Ack! If I have to pick one I would say Warcraft III + expansion if not counting those already said. Many good games out there!

Every gamer's library should have at least one game from the rich Worms series.

I'm in and thanks for the giveaway.

I respect your opinion but you're crazy.
That game is only for Koreans and octopuses. Original Starcraft on the other hand IS a game for everyone.

In, thanks muchly!

One game that immediately pops into my mind when I hear "PC gaming" is the first Deus Ex. A must have.

Thanks for the opportunity ExiL0n, please do count me in with a chance as well. One game that I think every gamer should play is Portal 2. It is one of the best games of the last generation IMO. :)

+1 and in, thanks!

A game everyone should have: Gothic II

I've probably finished the game about 9 or 10 times, it's just that good.

I´ll get in and in respect to the game that can´t falter in any gamers library and seeing that most already have been named by others, I´ll state "The Secret of the Monkey Island", most funny adventure I have ever played and.............it´s about PIRATES!, then, "Homeworld", the best space RTS I have ever played and, dare I say it, the BEST space RTS ever produced, and lastly "Descent: Freespace", a superb and immersive spaceship simulator with an engaging story and one of the best of their kind.

In! Thanks!

Everyone should have Neverwinter Nights. Owning the sequel would also be acceptable.

Count me in, and tehnk you very much! :)

A must-have game? I'd say Thief 2, imo still the best stealth game ever. But since Thief has already been named, I'll add Gothic: a really good RPG full of black humor and a realistic open world. I found it excellent for its great design, and because while exploring both cities (more like camps, really) and wilderness, you can never predict what you'll find: some rare items or death in the stomach of a shadow beast? A new friend or a trecherous murderer? Piranha Bytes surely surprised me in many occasions.

I'd like to be also.
As for my game recommendation, a lot of people are mentioning some of the fine RPGs here on GOG, so I figured I'd go in a different direction and recommend Beyond Good & Evil. It seems there is a bit of a chore getting it to work right, but IT IS WELL WORTH IT!

Thanks for the giveaway, ExiL0n! And welcome to GOG!

I am in :)!

One classic game everyone should have is Wasteland, I think its the single game on which I've racked up the most gameplay hours over the years.

Thanks ExiL0n for the fun giveaway :)! +1

Thanks for the giveaway, and I'll join in, please. Just about everything that leaped to mind for me - Thief, Baldur's Gate, Planescape Torment, and Sid Meier's Civilization games are the mainstays - already appears in this thread. Many other favorites are also mentioned. I'll add Half-Life 2 and Quake II, as glorious fun run-and-gun FPS games. I don't play a lot of shooters, but Quake II is always fun when I fire it up.

I'm in. Trine is an fun indie plat former that is a treat for the eyes.

Count me in, thanks.

The Witcher

I'm in

some1 already said Starcraft, so i'll say Warcraft III another RTS but completely different from how starcraft tactic works, it's awesome

I'm in and thanks for your generosity!

Everybody should have Hurrican ! It's an awesome PC remake of the Turrican games, a blast to play and even comes with a level-editor. And the best thing is - it's free.
No need to pay $10 - $20 for another generic and overly frustrating "metroidvania"-style platformer, just grab Hurrican and have some free fun. :)