I happen to notice when searching on the internet that Destructoid website is giving away 460 games for gog, is a promotion related to the big sale going on here on gog. I'm not sure I can post a direct link so you can do an internet search for this promotion on their website.

There website says: GOG has another huge sale, and we have 460 games to give away.

edit: Pain in the *cough* to do this but here's the link in question:

https://www.destructoid.com/gog-has-another-huge-sale-and-we-have-460-games-to-give-away-461908.phtml

edit: 'this' being the contest, not providing the link. At 54 reps, you should be able to include a link.

Thanks I shorten my message up to help prevent clutter.