Weapons,Maps,Music, anything.
There’s a ton of decent free content on the marketplace, and you can find more free content within the samples / examples within the launcher?
I see it the same way, there are a lot of valuable materials, assets, effects etc… on the marketplace / learn tab. It’s there to support you and to show you how you can achieve different goals.
If you are looking for a free database that will provide you everything for your game without doing or buying nothing… i guess something like this didn’t exist.
Free on the Marketplace and AAA: All the Infinity blade packs and the Open World Demo Content
There is also a number of excellent free items available here on these forums.
https://forums.unrealengine.com/forumdisplay.php?12-Community-Content-Tools-and-Tutorials
https://forums.unrealengine.com/forumdisplay.php?5-Content-Creation
I guess he is looking for a pre-made game that he only needs to slap a title on 
Agreed here, one of those “how do i make open world MMO game, i have great idea”.
Gotta love asset flipping;
Btw, here in forums we share a lot of cool free things too. Just have to lurke around…
Check out the Learning section as well, it has some free stuff. Any of the Epic projects you can also use assets from freely I believe