Beginning in December, players using PC, Mac, or SteamOS will be able to upload their custom game maps to the Stream Rocket League Community hub. In a post on their website they detailed out the directions on how to go through the process. For those who don’t know,
The Rocket League modding community like our fans on the RocketLeagueMods subreddit, have built some fantastic stuff using the Unreal Engine 3 UDK over the past year — including frenchfries’ own Rocket League Obstacle Course and Dribbling Challenge 1 to name just a few. With our new Steam Workshop support, it will be much easier for modders to share creations without having to edit game files.
In order to play these new levels players will need to subscribe to the new arenas in the “coming soon” section located in the Steam Community Hub. To get where you need to, you can click on the “Community” tab in Steam. From there you search for Rocket League under the hubs and it will take you to where you need to go. Once you’re in the Workshop section you can just hit the subscribe button next to any of the Workshop levels and Steam will automatically download them when they become available.
To get to your download after it installs, just open up Rocket League and head to the “extras” tab. Its then as easy as clicking “workshops” and opening the level up.
If you wish to upload one of your already created levels, you can do so by using new Steam Workshop Uploader Tool that will be included in the next update which,
Will allow content creators to upload their levels The Uploader Tool will ask for a few details, including a creation name, a brief description of it, the level file itself, and a preview image before you’re good to go. Once complete, the Uploader Tool auto-detects all the assets and once you hit ‘Submit,’ your level is off to the races!
Within the next couple weeks they will release more information on what will exactly be in it. So far the only timeline is that it will be coming sometime in December.