Posted August 15, 2018
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The IP-based blocking only kicks in if you actually attempt to buy a game or if you don't provide the cookie in your request.
The galaxy APIs for getting product/build information don't do any regional blocking afaik.
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$ curl -s 'https://www.gog.com/games/ajax/filtered?mediaType=game&page=1&search=dying&sort=popularity' -H 'Cookie: gog_lc=DE_EUR_en-US' | grep -o '"totalGamesFound":[0-9]*'
"totalGamesFound":0
$ curl -s 'https://www.gog.com/games/ajax/filtered?mediaType=game&page=1&search=dying&sort=popularity' -H 'Cookie: gog_lc=US_USD_en-US' | grep -o '"totalGamesFound":[0-9]*'
"totalGamesFound":6