Hi. Many people asked here how modding will work in this game, and it is really obvious. This game is made in Unreal Engine 4. It is a shared source game engine that anyone can download for free. The devs will provide a modified version of Unreal Engine 4 editor, that forbids access to game's C++ code, but allows you access to Blueprints, a visual scripting system. You will be able to download the custom editor from Epic Games page. In editor, you could do almost anything you want on your server. Altough you couldn't access the C++ code dirrectly, the devs will insert hooks in Blueprints, so you could still change or develop stuff. All the games using Unreal Engine 4 have taken this route when speaking of modding. I don't see this game different. I've attached to this post an image of Blueprint graph, to see how the scripting looks for turning a light on and off when entering a certain volume. You'll script existing and new things in similar way on your private server. If the devs succeed to modify the editor so multiple players could use multiple editors in the same time, on the same scene, that would be awesome.