Battle.net offers a new Map Download for Warcraft III made by Darky27 titled Nature’s Call.
“Nature’s Call is a highly stylized and unique tower defense map you can play on your own or with a group of friends. Pick one of four races to play and defend your huge circle against a wide variety of incoming mobs. Some of the map’s standout features are auto-blinking workers, itemifying towers that can turn themselves into items which can be moved around by your units and event traded with other players, and four unique merchants to purchase cool towers from! Will you be able to defend the circle and keep your town safe from the onslaught of 100 enemy waves coming at you? Time will tell!”