Legalization Nation has a secret. In the wilds of the national forest, we’re growing pot. Lots of it. We got Afghan Dream. We got Time Warp. We got rows and rows of White Widow. We started with just a hippie tent and some seeds, but if this keeps up, we’re going to need a plane, and maybe a jacuzzi next to the A-frame house. We’re talking, of course, about Pot Farm — a free game playable on Facebook that’s less than a year old and is about to pass 1.5 million monthly users. And judging by industry estimates, it appears that Pot Farm grosses its secretive and likely small team of young developers an estimated $148,000 a month.