You'll be able to permanently import all the games listed below from your Steam library to your GOG.com library – assuming you own them. The eligible games are limited-time offers made possible by participating developers and publishers, so stay tuned for more games to come.
Atlantis 2: Beyond Atlantis
Realms of Arkania 1 - Blade of Destiny Classic
Realms of Arkania 2 - Star Trail Classic
Realms of Arkania 3 - Shadows over Riva Classic
Tropico 3: Gold Edition
The Walking Dead: Season 2
These games are available to redeem until December 11