TBM was one of the mods that people used to play before the retail was released. First was Blockland Mods 1.6, then All-In-One and RTB. It's a little simplified to say they were in that order since they all existed about at the same time, at one point. TBM was actually a good mod for the day, but Badspot didn't agree with some of their developers' ethics (exploit to inject code into someone's Blockland directory.) In the end, after Badspot posted on the main site warning players not to use the mod, they split into their own community for a little while. As far as I know it's low activity, if any, now as it has been awhile since all of this happened.