For science-minded kids, the fictional worlds of Asimov, Heinlein, and Clarke seemed more real than reality, and destined to replace it.

NEWYORKER: No Death, No Taxes

Today, many videogames involve complex fictional worlds and give players free rein to create and shape characters including the chance to mold their moral compass.

WSJ: Radical Videogamers Go on Nonkilling Spree