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Plokite_Wolf: There is, under More -> Serial Keys. If that fails to display anything, contact GOG support.
gamesrule2: I don't have the selection "Serial Keys" when I select More.
To access the key, please go to your account (on the website, not in Galaxy), click on the game, then on MORE, and choose SERIAL KEYS.
Разве точно такой же полноценный Личный Кабинет недоступен в GOG Galaxy? Ключ можно посмотреть и там. Не понимаю почему некоторые говорят, что в Galaxy ключа нет. Разве это так?
Я почти не пользуюсь клиентом.

Простите за русский, я сегодня ленивый. :p
Unfortunately, the serial keys function is accessible only through browsers atm.