There is list of 10/10 reviews and also there are shown how those scores getting decided.
A list who earned 10/10 on our website. Take a look
Open world RPG already global popular worldwide - The Witcher 3 Wild Hunt receive a 10/10 and its really rare to see for some game 10/10 so it's definitely a big deal. Since 1996 just 8 games earned that rank and they are
GTA IV - Grand Theft Auto IV
Soul Calibur Dreamcast
Super Mario Galaxy 2
Tony's Hawk Pro Skater 3
Metal Gear Solid 4 : Guns of the Patriots
The Legend of Zelda Ocarina of Time
And now 9th in this really awesome games is The Witcher 3 Wild Hunt. So prepare yourself and don't miss this game, get it and start playing really soon.