WordPress how to build a mod dev site

which add-ons do I need to build a modding development site like moddb.com I need the users to be able to post the mods and articles and images and videos just like moddb but WordPress add-ons are where I hope that will have the addons to help me out on this. if you can please list the add-ons I need to achieve this site creation. These are the programs I am using right now….

FileZilla for uploading WordPress and installing WordPress package
for storage I am going to be using a server memory bank for my users to use to upload their mods.
my hosting service byethosting maybe switching to WordPress if that’s possible

I am also using windows 10 64bit pc

This is the site I wish to be able to make my mod site similar to.
http://www.moddb.com/