In this thread users can post all the games they bought on these EPIC SALE of GOG.

I have bought (So far ;) )

Temple of Elemental Evil
Neverwinter Nights
Sanitarium
Age of Wonders: Shadow Magic
UT 2004 ECE

None. For now.

But I'll probably buy some -50% games. I want to make some planning first, so I need 1st to know whole list I could possibly buy from.

So after Atari (-30%) and Activision (also -30%) I'm waiting for next publisher to see its discount.

EDIT: Oh, and also: http://www.gog.com/en/forum/general/so_what_did_are_you_planning_to_buy_during_the_sale

None. And it will probably remain that way.