https://www.gog.com/galaxy
主要更新下列三项功能，其他请看网页
Universal Cloud Saves
Never lose your progress again! New games, as well as all-time classics are
upgraded with saves syncing and cloud backup.
In-game overlay
Chat with friends, check notifications or your achievement progress by
pressing Shift+Tab in supported games.
Choosing your features
Customize the Client to your needs by selecting features you want to use, for
a personalised experience and no feature-creep.