If they think about gaming, most people would conjure images of Playstations, Xboxes, Nintendo consoles and PCs. But after a rapid rise in popularity, mobile gaming could be set to overtake console and PC gaming as the 'core' market for the gaming industry.

After 200 hours of gameplay, Grayson the fish has chosen his own name, gained his first Pokémon (a Charmander named AAAABBK) and defeated an opponent. Live-streamed on Twitch.tv, millions are tuning in to spectate on what could turn out to be the longest Pokémon game ever.

As internet-connected video devices become more widely available, there's a growing trend for live-streamed gaming. Platforms like Twitch are creating peer-controlled channels brimming with engaging user-generated content.

In October 2014, tens of millions of people across the world tuned in to live stream a sporting event. But it wasn't American Football or soccer, it was watching two teams - one Chinese, one Korean - compete in the computer game League of Legends.

PewDiePie is the most subscribed channel on YouTube, and its creator makes more than £2 million a year on ad sales. He's one of YouTube's elite – a new generation of hyper-influential media moguls. But why are 30 million teens watching a stranger play video games?

The word 'gamer' might make you think of teens in darkened bedrooms. In reality, over 60% of all American gamers are adults, and the average gamer is a 30-year-old with a job and family. But why do we play games beyond childhood? And is the way we play as adults any different?

Minecraft may be the most-sold video game on Earth, but it's very different from its fellow chart-toppers. It has basic graphics and no narrative – and yet it's captured the imaginations of over 100 million players. But how has this indie game become a global phenomenon?

Nearly 70% of US mobile gamers are women, but they're underserved. Ungendered or male-oriented games dominate. Celebutante simulator Kim Kardashian: Hollywood is disrupting the market with more than a million downloads in the first two weeks, but what’s caused this game to skyrocket to the top of the App Store?