Bleary eyed, I slammed my mouse down and growled out loud. I could barely see my watch in the dark, lit only by the glare from my monitor. 2:30 AM. How could I possibly have played this long, and not known it? I sighed and stared at the screen. There, in blood red hue, lay the corpse of my warrior, piles of gold everywhere, surrounded by acid spitting demons. I crept into the other room to find the telephone, and dialed a close friend. Luckily, I had started this session as a modem game, just in case. "John? Are you awake? I need your help, man. I died to those lame acid spitters on Hell difficulty again, and there is no way I can get to my corpse. Dial in and help me? I can't just restart, man, I just got that King's Longsword of Haste, I'll never find one again..." So began another co-op rescue mission in Diablo, Blizzard's masterpiece for the PC.