Paraphrasing Huizinga, Homo ludens who devised the ludens city consists of three sketches of the city: the playful city, room to play, to celebrate, to develop imagination and creativity; visionary city, space for fantasy and reverie, the city as a utopian project; City and participatory, responsive space, interactive, spontaneous, informal and alternative. We note the spaces of action, collective manifestations, spontaneous and ephemeral events; how spaces of the community and communication against the strategies of power, the society of the spectacle, the leisure market and mass culture are configured; the 'improper' actions and alternatives that form the fabric of the city playful outside the planning and architectural design. New tools, changes in perception, changes in methodology in the investigation of urban and foster a proactive citizenship today a new framework for action in the city. The city is seen as a big game board where imagination and creativity of artists, architects, interdisciplinary groups and citizens is released. Communication and participation in collective spaces that are generated in the network has a great impact on its realization in situ. New technologies as educational tools to express ideas with ease and immediacy, the chances of citizens to access social, leisure and culture, gain power and social construction. The recreational area of the city never arises from the projection of the personal ego, but it is created for future enjoyment. Here, we review here the normative spaces, based on historical patterns, and analyze other play areas designed from a humanizing, green and sustainable, viable perspective in situations of economic crisis of values​​, and in the future that would enable a city the protagonists are their own citizens