Yep I got what your saying. I am just surprised that you haven't noticed our products in any of our challenges, you are a very active member which we appreciate. I would assume that you would be able to pick these out rather easily. I was incorrect. Ok, Obviously we know what is a purchased item and what is not as it relates to Terragen items. If someone uses say Dunes Waterfall or one of Luc's Canyons as their cliff they will not just walk away with a prize as you are saying. A submission such as that would be rejected as this will be clarified in the rules when they are posted. I am assuming you saying VM means WM, as in World Machine. There will be restrictions on all 3rd party programs to keep this a Terragen challenge. Daniil's erosion WILL be allowed. Dude, Please wait until the rules are posted then you can decided if you are interested or not.