Cosplayers wait for the arrival of German chancellor Angela Merkel for a photo shooting at the Gamescom fair for computer games in Cologne, Germany.

Visitors passing an advertisement for the video game 'Call of Duty' at the Gamescom fair for computer games in Cologne, Germany.

German chancellor Angela Merkel poses with cosplayers at the Gamescom fair for computer games in Cologne, Germany.

CEO of Sony Interactive Entertainment Jim Ryan explains to German chancellor Angela Merkel a virtual reality playstation game at the Gamescom fair for computer games in Cologne, Ge...

A man in a wheelchair plays a virtual reality game at the Gamescom fair for computer games in Cologne, Germany.

Visitors try out the latest virtual reality glasses at the Gamescom fair for computer games in Cologne.

Visitors try out the latest star wars video game 'Battlefront II' at the Gamescom fair for computer games in Cologne, Germany.

Visitors try out the latest video games at the Gamescom fair for computer games in Cologne, Germany.

A gamer tests a computer game at the Gamescom in Cologne, Germany.

Visitors try out the latest video games at the Gamescom fair for computer games in Cologne, Germany.

Visitors play the latest FIFA 18 soccer game from EA Sports at the Gamescom fair for computer games in Cologne, Germany.

Gamers test out computer games at the Gamescom in Cologne, Germany.

A cosplayer dressed as the fantasy figure Widowmaker from the videogame Overwatch walks with a play gun at the Gamescom fair for computer games in Cologne, Germany.

German chancellor Angela Merkel standing beside a Minecraft game, showing her in front of the German Reichstag, during the Gamescom fair for computer games in Cologne, Germany.

German chancellor Angela Merkel plays an agriculture simulation game during the Gamescom fair for computer games in Cologne, Germany.

German chancellor Angela Merkel speaks during the opening of the Gamescom fair for computer games in Cologne, Germany. The leading European trade fair for digital gaming culture is...