Sadly my one experience with GMG wasn't overly positive when I got a game there. Steam said the key was already in use. Fanatical and Humble are the only third party website I ever buy from, but plenty of people use GMG without any issue.
Lois McMaster Bujold "A Civil Campaign"Reputation is what other people know about you. Honor is what you know about yourself. Guard your honor. Let your reputation fall where it will. And outlive the ***