Miscreated EU Steam Altergift

Nobody knows what started the Final War — it was over too fast, fought with the last of the belligerent nations' nuclear stockpiles, and the ones who pulled the triggers didn't survive. It was the Final War because after that there was really nobody left who wanted to fight; we were all too busy surviving. Half a century of wars using nukes, bioweapons, nanoweapons, and even kinetic-kill weapons, gave us the Empty World: population 100 million and falling fast. Who's to blame? Depends on who ...