Or... $19 a month (cancellable in any given month) for use with free Unreal 4 (or $19 per month for free Unity or free with Lumberyard). You get the ST 7 & ST 8 modeler that is identical to ST Cinema 8, but with export limited to the Game Engine. Then after learning the program and building your assets (or purchasing and modifying base foliage assets) create however many variants of each species you like, then switch to the $200 for 3 months and export like crazy. That's my current plan.
Export as individual meshes using wind effects isn't really practical, but ST provides a couple of different formats to export the wind functions. Of course all the above game engines read those formats and the export into those engines is pretty simple. A great way to test the assets. I know there has been some past interest in importing wind motion thru the MDD format into TG, but I have no idea where that sits with Planetside's current roadmap.