People visit the Computer Games Museum Berlin, in Berlin, capital of Germany, on May 18, 2018. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)

People visit the Computer Games Museum Berlin, in Berlin, capital of Germany, on May 18, 2018. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)

Photo taken on May 18, 2018 shows gaming devices exhibited in the Computer Games Museum Berlin, in Berlin, capital of Germany. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)

People visit the Computer Games Museum Berlin, in Berlin, capital of Germany, on May 18, 2018. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)

Photo taken on May 18, 2018 shows an exterior view of the Computer Games Museum Berlin, in Berlin, capital of Germany. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)

People visit the Computer Games Museum Berlin, in Berlin, capital of Germany, on May 18, 2018. The Computer Games Museum Berlin, which was founded in 1997, displays more than 300 exhibits to allow visitors to experience the development of computer games in decades. (Xinhua/Shan Yuqi)