Why should I create a map of my own? Are there rewards?
Your maps can be evaluated. Anybody who has played in your map and finished a game in one of the play modes will be asked to rate the map. They have fifty points to give away per day. The more points your maps get, the more brick points you get back out of it. Brick points let you take part in the Treasure Chest where you can win cool weapons and, eventually, convert your prizes into General points.
Currently the system of evaluating maps created by users are points. Once the map is registered, the player can then host the map where people play on it. At the end of each round, players can rate from one to ten with their fifty stardusts.