I think inb4fionafrommercs because this game is unfinished, it should be free until it's done.
Well. I've happen to play this game for about 3-4 years (before Blockland, thanks cousin!) and to tell the truth, Build 19 was the LAST free version. They were all free, but Data decided to start charging for new builds.
They dropped Plimus and then used better licensing. I am thinking about making a more detailed CC topic, just because I've been playing the game forever, and I read the Dev Log
DAILY. I really think Badspot should get a blog just about BL development, just like CC.
Also, if you know what Data's real name is, you get +10 e-peen. He announced his name in a Game-Informer? issue.