for ludum dare 54 we made a game about hosting a LAN party in 2003:
to quote the LD entry:
It’s 2003 and you and your friends are organizing a LAN party. Download the games you’ll need, but be careful, you’ve got limited hard drive space.
We ended up having too much fun building period-accurate UI and the actual game bit is a little absent. But it sure does look like a 2003-era windows install!
It was a ton of fun and I really enjoyed spending a lot of time on nailing the aesthetic, even if that meant we didn't really end up with a lot of "game".