I really wanted to post .hack//sign but it's kinda hard having a picture of them playing the game cause they are inside the game like SAO. The pictures looked like a medieval fairytale Аниме world.
So I'll go with Wataru and Chi from the Аниме Brothers Conflict
this Аниме is about Аниме characters going into video game and got stuck..in order to survive they have to win the whole game........... if they die in the game which means they will die for real..........
It's an Аниме about a brother and sister getting teleported into this world where everything is decided by games. The Аниме revolves around gaming and the characters play video games and other games such as poker and chess.