speed tree for unrealengine4 ?

If i make game with speed tree for unrealengine4. Do i just pay only 19/month or do i have to pay extra for speed tree license before/after selling game to steam?

It sounds like you’re asking about IDV’s licensing terms rather than Epic’s, so I can’t speak to that. I suggest reaching out to IDV directly.

http://www.speedtree.com/ue4/subscription.php

The SpeedTree subscription is just for the Modeler. Any trees you make or buy will work in the engine without further purchase. You can release a game with them.

…as long as you’re using the subscription/free version of UE4. If you have a custom license with Epic, you’ll need to contact sales@speedtree.com.

Thank dude