LGOGDownloader is an unofficial downloader to GOG.com for Linux users. It uses the same API as the official GOG Galaxy.

Version 3.19 has been released, bringing several fixes and a new filtering option.

Fixed getting info for some DLCs after GOG changed the way API responds

Fixed crash when terminal window is narrow

Added –game-list option to allow specifying filter string(s) in a file

Fixed some issues with CMake and compatibility with JsonCpp 1.9.7

Fixed product not being properly detected as invalid when it has all platforms disabled

Fixed hitting API limits when getting info for games that have more than 45 DLCs by doing several smaller requests instead of one big request

Removed login GUI since login is now done using browser

Added %version% template variable

Fixed missing files when using locale in filter and other status/config fixes

Source: GitHub