Portal 2 has 13,000 lines of dialog

Portal 2 will feature over 13,000 lines of dialog, which is a lot for a first person puzzler with a mute protagonist.

15,000 lines of dialog sounds like a lot, except for the fact that the game is four times larger than the original game, and you have a chatty sidekick talking in your ear this time in the form of Wheatley, along with GlaDOS herself. Wheatley may not be the only morality core you hang out with.

Halo 3, in comparison, had 50,000 lines of dialog.