New data suggests that games with demos sell half as many as those without.The information comes via game designer Jesse Schell at the
Gamelab conference in Barcelona. The data, which comes from analytics company EEDAR, shows that games with a release trailer but no demo sell on average more than twice as many copies as those with both a launch trailer and a demo.
It's a marked difference, with the former averaging 525,000 sales after six months, with the latter category shifting just 250,000 copies. Games with neither, meanwhile, sold just 100,000 copies on average.
Of course, correlation does not necessarily mean causation. It may be that the best-selling games simply don't
need to offer a demo. Similarly, without information such as whether the figures include digital titles to hand it's difficult to draw conclusions.
Source:
CVG