I loved that about SC2. Its so long ago though that I don’t remember if I learned about the constraint from a FAQ or on my own. But given how mad people were about a similar constraint in Fallout, I can’t recall the last time a big adventure game had a world-ending condition dependent on the passage of time.
The difference with Fallout 1 constraint is that in SC2 you feel the galaxy to be alive and breathing, with multiple events happen and influence each other. While in Fallout you just have a timer. The world in Fallout 1 & 2 feels very static, where nothing happens without your direct intervention.
