It's not complex, but don't confuse complex with hard. It's a large project, and completing a large project as a hobby is a monumental undertaking. I'd wager than more than 50% of the developers in this game (and the actual number is probably closer to 90%) have given it a shot at one point or another. Yet no one has actually finished one (unless you count PriitK). Well I have time , the only problem is keeping the motivation... Anyway, was PriitK a developer for VIE? If not how did he wrote the client because I can't remember VIE releasing documentation about their software.