Hey unreal creators can i use epic paragon assets in my game and publish that game in steam or epic store
… includes the character model, animations, animation Blueprints, skins and FX released to the Unreal Engine community for free to use as you like in your Unreal Engine 4 projects!
UE-Only Content - Licensed for use only with and under the same terms as the Unreal Engine. You may not use the trademark PARAGON to advertise or name your game.
So you should be good as long as you use Unreal Engine for your game and you do not use PARAGON trademark.