BioWare hopes massively multiplayer online game Star Wars: The Old Republic will last for decades.
The game has 19 major worlds, senior creative director James Ohlen said during a Comic-Con panel reported by the wonderfully-named Darth Hater.
"Well, I can say that we have 19 major worlds," he said. "Then we have an indeterminate number of minor worlds. And our goal, obviously this being an online game, that we're hoping is going to last for decades, we're going to be, obviously, adding more to the galaxy map as the game progresses.
"We want to add dozens of worlds. Hundreds of worlds eventually. In 2025, we'll hopefully have 500 worlds."
Each of the six Star Wars: The Old Republic classes packs 200 hours of gameplay - excluding crafting, raiding and "the multiplayer" - according to EA.
EA Games boss Frank Gibeau described the in-development MMO as "gigantic", although he wishes the game hadn't cost quite so much money to make.
Last week publisher EA confirmed a 2011 release date for The Old Republic.