The grid went quiet a long time ago, and the green came back up through it.

Ivy in the stairwells, meltwater in the substations, sunflowers on the cooling halls — and people, learning the old machines back into use one salvaged part at a time. It works. It has worked for years.

Then the blight started coming back, and something under The Array began drawing power again. So a handful of you walk out to a ruin with a stash of herbs, a bag of screws and a book of pages, and you make it somewhere worth standing — three rounds to build, before the fourth comes for you.