Low Poly Trees Pack is a huge 3D tree package which contains a huge variety of different trees ready to use for your game environments. Just drag and drop prefabs to your scene and achieve beautiful results in no time.
Unity 2019.4 and above (including Unity 6)
Current version: v1.4.6
Also, a few materials used for demo scenes included:
Music and sounds used in the video are not included!
Yes, you can use assets from this package in your game and as long as these assets are the part of the game you can sell that game. You can't sell assets alone or in a pack in any form.
The short answer is yes, you can. All assets are exported as FBX meshes, so if your game engine supports it, you are good to go. More info in FAQ page.