Stiler: When they posted all the ROA codes on twitter I opened it within a minute, but all I got were the "world globe" page when the site was under too much load, so I wasn't able to get any.
The time that the pages loaded every code was gone :(.
At least gog is doin ga variety, both the "first come" type of giveaway and the post and randomly chosen, so there different ways to win, just have to be lucky.
Stiler, I had that, but what I did was to try a few codes at a time and keep refreshing until it told me if the code was redeemed or not. Eventually, I found one which had not been claimed, and I went with that one.
As you said, you just need to keep at it in order to claim the prize, even if you have to become accustomed to seeing a globe.