Imagine this scenario: you and an old childhood friend are reminiscing about how you used to rush to the computer club after school and play de_dust2 for hours on end. You decide to relive your youth this weekend, get a group of friends together, and play for a couple of hours in the evening while drinking beer. But it turns out I’m running a new OS now, and on it, half of my old games from torrents either won’t launch at all or just show a black screen.