Just bought Terraria on steam last night, (was a bit pissed) but not really sure how it is different compared to minecraft apart from the 2d bit.
I take it, it is the usual build, explore and mine. I read a bit on the wiki for beginners, so know I can attract merchants etc.
I built a house for me and one for the guide so far. Not mined yet though, so must try that.
Must have a proper go on it tonight while I am sober