Hello, I'd like to buy the Cube Escape series, currently on special offer on GOG, but I'd like to know whether the games include successes, as is the case with Steam. The presence of successes is not mentioned on the game description (in "Features"). I don't use the Galaxy installer and prefer to download the games to hard disk. Thank you for your reply.

The achievements are only within the game. GOG does not track them for this game the way that Steam does. I have emailed them asking them to add the feature, but I doubt it will happen.