I don't know how long ago this was, but I was messing around with lego digital designer. A few google searches later, I came across v0002 Blockland, and subsequently, RtB. I downloaded RtB and absolutely love it. I still remember it's primitive wrench events system... Ahh. Anyway, I fazed out of playing that mostly because almost all of my builds were done with the EW and I could never get it looking good (they all came out box houses :P) Anyway, about four five, maybe six months ago, I found the RtB folder and though I'd give it a spin. After finding no servers, I looked for Blockland again. I found the retail version, I wasn't too happy with the demo, but due to overwhelming community response of "yes! Buy it!" I did and now I've been playing blockland for awhile now.
I actually quit because of boredoom after two months or so, but ever since V9 came out, (and my building has gotten better) I've been playing steadily ever since.