Hey All,
I saw that the only UDK forums had a thread like this Free Custom Assets ready for UDK! [Only Download] - Epic Games Forums would people be interesting in bringing this back for unreal engine 4’s forum? There are tons of free assets out there but very little of them actually import into unreal 4 properly, at least in my experience. Feel free to reply to this thread with your free assets.
I would recommend the same format:
Name: Type Package file
Type: Package/ Source/ Files
Category: Material, StaticMesh, SkeletalMesh, etc
Screen: Post Screen
Download: Post Download link
Author: Post author name if package is not yours
License: Link to the license text (GPL, CC0, BSD, etc)
Description: Optional