From Grand Theft Auto to world peace: can a video game help to change the world?

Lual Mayen turned his family's escape from civil war in South Sudan into a powerful gaming experience - that will have real-life benefits for refugees

It was while fleeing the civil war in South Sudan that Lual Mayen's mother gave birth to him 28 years ago. She had four children in tow and was near to the border with Uganda, in a town called Aswa. The journey was difficult; Mayen's two sisters died on the way and he became sick. No one thought he would survive.

I can't imagine what she had to go through. There was no food, no water, nothing," says Mayen. I remember she said she was not the only woman who gave birth on the way. Other women abandoned their children because they didn't want them to suffer. But my mother thought: He is a gift for me, I have to keep him."'