Game On! London, the consumer show set to take place this November at Earls Court, has been cancelled.
The show was originally announced in April this year and was due to take place in June, but was later pushed back to November.
"It is with great sadness that we announce that GameOn! London has been cancelled," said the organisers, promising that its ticket agency will be processing refunds.
The show was a collaboration with entertainment retailer HMV and would also host an eSports tournament.
The organisers, Creative Games Media, also used to run defunct satellite games show X League TV, which disappeared from air last year.