Three words: "A Realm Reborn"
For anyone somehow unfamiliar with it, let me summarize: Final Fantasy XIV released in 2010, and was panned. Bad controls, bad UI, bad user interface, and bad gameplay with an insufferable grind. Devs would later confess that the initial production had put too much emphasis on graphical quality, had a poor understanding of MMO fundamentals, and simply assumed that problems could be patched out later. A little more than a year after launch, they issued an official apology for the game's poor quality, noting that it was bad enough to have damaged the Final Fantasy brand. Consequentially, they felt they couldn't simply move past it and had to rebuild it from the ground up so as to regain the fans' trust.
And the brilliant thing about it is that they didn't just go "ok, here's what the game should have been at the start", they gave the game a full apocalyptic sendoff! One of the antagonistic forces tries a suicidal gambit that pulls a moon out of the planet's orbit, which obviously has cataclysmic implications. So the desperate response is to summon the world's Twelve guardian deities to return the moon to orbit, even as the aforementioned antagonist's armies are still pushing the offensive...The players can see the flaming sphere of the moon in the sky as the servers near their shutdown date...and then this happens. (Cutscene actually starts at 5:23)
What a way to go out! Character stand-ins and major NPCs fighting to the last, the revelation that the threat was so much worse than they anticipated because the moon was a prison for fricking Bahamut...an archmage doing what little he can to hold the dragon king off until the faithful around the world can summon the whole divine pantheon to reimprision him...and then they fail to do so. Bahamut overpowers the gods themselves, and as everyone stares in the face of their impending doom, the archmage tries one last gambit and sends the player stand-ins across timespace to safety, because they're the best hope moving forward.
I just love it. They canonized the destruction and reforging of the game in-universe as a near end-of the world event that the players just barely escaped from. That is literally the last thing that anyone online would see just as the servers were finally taken down, bridging the gap between the failed initial launch and the remake. And. It. Was. Beautiful!