I just checked the games that are available for free on GoG and saw that Servo and Sorcerer King are listed as free games. It`s interseting that GoG managed to get some upcomming games that will be available for free!

Well, teasing is generally offered for free. :P

I highly doubt that. They probably just have't set a price yet and so the games appear as free in the catalogue.

Maybe you mean DRM-Free not free as in price, the FAQ on Sorcerer King's website states 39.99$: http://www.sorcererking.com/game/faq

I suspect it's a mistake/ bad listing/ bug and our lovely bear is having fun!

Not really? Shit, I was looking forward to getting them and then trading them for some really expensive titles.

Have worms forts - want sourcerer kings y n? have big rep greetings. send me msg have lots of other codes 2.

I actually doubt they will be free, given that they're relatively new (Sorcerer King certainly is, haven't heard about Servo yet)

Might just be a bug related to the fact their price/release hasn't been announced yet... or maybe they just ended up there accidentlly.

Since no matter how awesome it would be, I just can't see it happening (it's just to good to be true)

No, they just appear in that list because the actual price isn't in the database yet, or something like that.
Same thing happened when Shadow Warrior 2's page was added to the store.

^This. It's just a quirk of how the store database works. Eventually the real price will get added/updated.

Hm, if it is so, then why are the other non priced upcoming games are not listed in the "free" area, too?

You weren't honestly thinking these games would be free, right?

Because they've already set a price for the other games in their internal database?

No idea. All I know is that several games that had been listed as "upcoming" in the past were also included in the "price=free" filter at first. They usually just disappeared from there after a while.