Games That Were Suppose To Sell Very Well/Huge, But Failed to Do So? (Devs+Publishers Expectations, not Fans)

[Soundwave]

Add "Blur" to that list ... that was the heavily marketed racing sim that made fun of Mario Kart in its commercials and bombed.

https://www.youtube.com/watch?v=ING276z7quA

It actually was a pretty good game apparently (82% meta score), but it flopped and Activision shut down the studio behind the game.