The atmosphere grabbed me from the first second: the Phoenix BIOS boot screen with a Pentium 4 and DSL, then a login prompt where you type your own handle and get "last seen: 2003.11.04" back. Jacking in drops you onto a moody hex-grid network with a 10:00 run timer, and I loved that kite immediately calls you by your handle ("...idle? is that actually you?", "two years without a word") before setting up a fake practice job to copy payroll_2006.xls from the accountant's machine. The neon-on-dark look and the 2006 details make it feel like a lost game from that era, and the idea that crashed PCs stay dead the next night is a great persistent-world hook.