It has been reported by Neogamr that portal 2 has sold over 4 million video game copies in PC, Xbox 360 and PS3. It has been one year since the release of portal 2 which made this puzzle game a hit back then. Since then it was released on PC too and overall has done very well. Will we see Portal 3? I think we would just based on those copies that were sold we can say that it was a popular game with much more to offer for the next release. We will be bringing you any updtateds if there are any for the new portal 3 (this is just a rumor for now).