I used the Warcraft 3 map editor a lot(13+ years ago) to teach myself programming. So maybe I can shed some light.. Dota 1 was originally a Warcraft 3 (a Blizz

I used the Warcraft 3 map editor a lot(13+ years ago) to teach myself programming. So maybe I can shed some light.. Dota 1 was originally a Warcraft 3 (a Blizzard game) custom map, built with the Warcraft 3 map editor. In Dota 2, practically every character is just a copy of a Blizzard character, because well, Dota 1 was made with Blizzard assets. They've since changed a lot of names to get around Blizzard IP. For example a character named "Windrunner" became "Windranger", "Skeleton King" became "Wraith King", etc.. One of the things I remember is when you open the application, you're first faced with a GIANT warning popup that stays open for 5-10 seconds. You have to agree to it in order to use the map editor, which includes the EULA. They've based their entire game on Blizzard assets & have agreed to those terms over a thousand times... I think this is not going to be easy for them.