LOS ANGELES  The Japanese video game titans, Nintendo and Sony, announced wide-ranging, if not entirely breathtaking, constellations of new games and services at the E3 convention here on Tuesday, but did not appear to significantly alter their overall strategies in the fast-growing game market, as Microsoft did on Monday.

Nintendo  which is riding high on the gangbusters popularity of its DS handheld game unit and its Wii home console  continued to aim largely at children and the mainstream consumers who have adopted gaming in recent years, propelling the industry and the hobby beyond its historical base of young male players. Sony, which is finally generating some traction and excitement around its PlayStation 3 console after initial stumbles, directed most of its new offerings at more traditional gamers, as well as at movie buffs interested in the company’s high-definition Blu-Ray disc format.

While far from disappointing, the combined showings from the two companies appeared to leave some of the cognoscenti a bit underwhelmed.

“They didn’t need to show a lot and so they didn’t show a lot,” Brian Crecente, managing editor of Kotaku, a leading game blog, said of Nintendo. “I’m a little disappointed that Nintendo didn’t make good on their promises of earlier this year that they would have a big new title for hardcore gamers. People were expecting a big new Nintendo Wii game, like another Mario game or Zelda, or a big new intellectual property for core gamers. And what they got was more casual games, and not a lot of them. As for Sony, they did have to show a lot. They met the minimal expectations but they didn’t blow it out of the water.”