The possibilities and didactic limitations of the computer games stand out. The utility of themicrocybergames in the educative surrounings of Internet is put of relief. In Java, the designs of themicrocybergames are studied, emphasizing the advantages of predesigned applet over the ones generated by some author created tools. A selection of flexible and gratuitous applet with possible didactic use is made. Examples of applications of these applets in proper contents of Social Sciences in the no university curricula are incorporated