3. Map Editor. The Game includes a program that allows you to create custom levels, maps, scenarios
or other materials for use in connection with the Game (the “Map Editor”). The following terms are specific to the Map Editor:
a. Map Content. You understand that the content required to create or modify STARCRAFT® II
Modified Maps (as defined below) is included in the STARCRAFT® II game client, and that all
such content is owned by Blizzard and governed by this Agreement. YOU ACKNOWLEDGE AND
AGREE THAT ALL MAPS, LEVELS AND OTHER CONTENT CREATED OR MODIFIED USING THE MAP
EDITOR (COLLECTIVELY, “MODIFIED MAPS”) ARE AND SHALL REMAIN THE SOLE AND EXCLUSIVE
PROPERTY OF BLIZZARD. WITHOUT LIMITING THE FOREGOING, YOU HERE BY ASSIGN TO
BLIZZARD ALL OF YOUR RIGHTS, TITLE AND INTEREST IN AND TO ALL MODIFIED MAPS, AND
AGREE THAT YOU WILL EXECUTE FUTURE ASSIGNMENTS PROMPTLY UPON RECEIVING SUCH
A REQUEST FROM BLIZZARD.
Prior Blizzard games like Warcraft III had EULA provisions that prohibited selling maps created with their editor, but the copyright remained with the map maker. Now? Anyone who creates a new, popular mod like DotA with the Starcraft II editor will have no rights to their own creation."