My group does some really fun world building. This is what we somehow ended up at this last session:
Planet Blimothy, once the hottest artificially terraformed vacation planet, full of towering crystal valleys, jungles formed entirely of glowing snakes, hot springs of light and shadow, and other sights to dazzle the imagination. Rated 5 stars on galactic TripAdvisor!
Which is, unfortunately, 80 years out of date. Everything went wrong when the snakes achieved sentience and rebelled, then was compounded when the robot mongoose army unleashed to stop them went rogue. Now the planet is locked in perpetual war between them. But don’t worry! The resorts that survived are barricaded behind high walls and high tech defenses.
So here we are, at the premier resort&day spa of Planet Blimothy, an oasis amid the apocalyptic conflict between the glowing snakes and the robot mongoose horde. (They still haven’t managed to agree on a better name for the planet.)
That was, I think, my favorite part of that session.