Dota 2 Workshop Tools

 The Dota 2 Workshop Tools is a set of software utilities available as a free download for Dota 2 that allow you to create your own custom game modes (called addons). The tools package must be installed to create or play any custom game mode addons.

At this time, the Dota 2 Workshop Tools are considered an alpha testing release and only suitable for custom game mode content authoring. Developers creating cosmetic content for inclusion in the Dota 2 store will need to utilize the existing tool path. More information on that path can be found on the Dota 2 Workshop website.

Installation
(Note: The installation download is approximately 6GB in size and may take some time depending on available bandwidth.)

Option 1

 * In your Steam Settings under Account you must opt into Steam Beta Update participation.
 * Right-click on Dota 2 in Steam and select View Downloadable Content.
 * Check the box in the Install column next to Dota 2 Workshop Tools DLC.
 * Click Close. The required content will begin downloading.
 * In Steam, go to the Library menu and click on Tools and install the Dota 2 Workshop Tools Alpha.

Option 2

 * In your Steam Settings under Account you must opt into Steam Beta Update participation.
 * Launch Dota 2 in Steam.
 * Click the Play tab and then select Custom Games.
 * Click the Install button.
 * In Steam, go to the Library menu and click on Tools and install the Dota 2 Workshop Tools Alpha.

Launching the Tools
Once the download is complete, the launcher is found in Steam under the Library menu under the Tools category. Double-click Dota 2 Workshop Tools Alpha to start.