The Internet - Our Future World What “game” would appeal to the majority of an adult audience? — I like sushi
I don't think one particular game would appeal to everyone.
What would be appealing to almost everyone, and is already making a great impact is virtual life.
Platforms like Second Life are gaining popularity world wide. As the speed and spread of the web increase so will membership to sites like this.
Eventually people will just slip into their virtual self and do whatever they like, esports included. It is not hard to imagine that one of today's kids would rather spend his day in a virtual reality while lying on his bed than having to get up and go to meet real people. Think about it, the teacher would be on line and he could go to school without getting dressed or putting on a uniform, he could do the exercise and class work while chewing gum, he would never be late handing in homework because he would do it online.
How many older people suffer from stress and anxiety because they have to run around trying to get their job done while looking after a family. In a virtual world, for people that do not do manual work, it would be so much easier to do things. And when they have problems with their partners or families they can retreat to the virtual family they have online.
This is not really possible right now but a lot of people do work from home using video conferences and the internet to receive and turn in their work. I believe that within a matter of a few years 3D conferences will take the place for meetings with the boss, not as a holographic like in the SciFi movies but in the online worlds.
To answer your question then, it would be the game of life.