I'll be putting a bunch of time into Neverwinter, since it's a double AD weekend.
What happened with Devil May Cry?
As for me, an accidental war with The Green Offensive in Anno 2070
led me to settle a more defensible underwater plateau situated in the heart of my trade empire. It was powered by a hydrothermal power plant but, because I was distracted by all the attack hovercraft conducting guerrilla raids on my cargo liners, I never got around to installing the proper safety modules.
The resulting tsunami was apocalyptic. It originated in the dead center of my three most critical islands, annihilating everything in its path and throwing a million gallons of murky floodwater a kilometer inland. Katotown took it the best, with the water simply washing away the entire warehouse district where all the commercial goods were kept. I think the quay wall acted as a breaker so the tidal wave didn't penetrate so far past the shore.
Gratch Gardens is a wasteland. Not only did the tsunami scour its primary distribution facility and a half dozen farms from the map, it also critically damaged three offshore oil rigs so the ocean current carried a tide of toxic black crude with it. Even Wall-E couldn't survive there now.
I'd like to say I'm a skilled enough player to dig myself back out of this hole, but frankly it's hard to imagine. My people are starving, my economy is crippled, and any convoy trying to cross between islands is overrun by light skimmers. I think it's time to load whatever meager supplies I've got left onto my ark and put this graveyard at our stern.