This is the Science Fiction Scenario that was made only for Civilization II: Test of Time and no other version of Civilization. It has Humans and Bug-like aliens get stranded on a distant lost planet that is in a system that is the ruin of a long gone Sufficiently Advanced Alien Civilization. They have to rebuild their civilizations and then learn how to coexist in order to get back to their homes and discover some of the secrets of ancient technology in the surrounding ruins along the way.