So yeah, I remember my first "You can't play this anymore despite there being a single player component because we shut down the server and nobody was around to pick up the pieces." Darkspore. That game was kind of a dud in terms of media reception and overall player impression, but I thought it was... ok. Not groundbreaking, but not the worst thing I'd played even that year. So, a few years later when I decided "eh, I never finished that game" and trying to play it, lo and behold, EA pulled the plug and, while there are still a few holdouts, there wasn't much of a community to try to rebuild the tattered remains. So it remains dead, locked behind an EA login screen.,(reply>), Even though it kinda flew under the radar/wasn't looked that fondly upon, Darkspore is like the poster child for single player games that died because they needed online connectivity. As far as I know, it's one of the earliest cases of it happening, and with the trends in modern gaming, it's basically all we have to look forward to unless you stay with indie games.