Hines said that a playable demo crafted around a portion of the game would prohibitively limit the experience, which is built around an open, explorable world.
"When you build it as one thing, there's no way to portion off a section and have it stand on its own without putting the whole game in the demo, which we're just not going to do," Hines said. "And it doesn't really capture the fun of a game like an Elder Scrolls or a Fallout, where you can go where you want and do what you want. So no demo, sorry."
Fallout 3 is slated to hit retailers this fall. For more on the title, be sure to check out our hands-on preview.