Evoke is social net­work game cre­ated for World Bank Insti­tute. It was widely avail­able between March 3rd 2010 and May 12th 2010, now it can be played within groups after sign­ing up. Its aim is to help to empower peo­ple from whole world to learn more about real-life social issues and cre­ate new, cre­ative solu­tions to most urgent social problems.

official game website