Can we use sample content in our own games?
You can do whatever you want with it as long as you give Epic 5% of your revenue.
From the FAQ:
What can I do with this free content? You can use template games to build and ship your own projects. We encourage you explore, deconstruct and modify the sample games and example content as you like. You can use this content for your own game projects, too!
answered Mar 30 '14 at 10:13 AM
However, once they open the marketplace up you can purchase other people's assets and use them in your projects for commercial use!
answered Mar 30 '14 at 09:32 AM
Follow this question
Once you sign in you will be able to subscribe for any updates here