Worth £6bn and with revenues recently rising by 10.9%, the niche interest game has become a global business

You don’t need to spend your weekends organising a face-off between bloodthirsty orcs and elves to have heard of the game Warhammer.

So popular is the fantasy game that its parent company Games Workshop is valued at a staggering £6bn and is almost ever-present on British high streets.

The fact a niche interest game invented by self-confessed geeks has become a huge global business is a story almost as unbelievable as those played out on its customers’ kitchen tables.

Games Workshop started as a mail order board games company run by three friends from their flat, but is now an FTSE 100 darling, which has grown 10.9% in revenues over the past six months thanks to soaring worldwide demand for its iconic plastic models.