Well, after posting up about Alternate Reality Games recently, here’s a link about a more conventional but highly addictive game: Civilisation.
I first played this years ago, when I bought the original version of ‘Sid Meiers Civilisation’… I played it quite a bit, but I never really got particularly good at it. Anyway, you can download a really cool free (open source) version of it called Freeciv.
Download it, play it, read the strategy guides… you’ll be hooked! (Well, probably frustrated at first, but you do start to get better when you’ve played it a bit).