Role-playing games have become more mainstream in today's society and some Swedish public libraries even organize role-playing game sessions as part of their activities. In Swedish library media, role-playing has been linked to reading and literature, however research show that role-playing games also has a number of other uses, but that the most common goals for library's gaming programs are to provide entertainment and attract users. Previous research about role-playing games at public libraries has not investigated any actual role-playing activities in the sense that library staff arrange game sessions. Investigating this can therefore contribute to an increased understanding of how librarians view role-playing games, which in turn may contribute to knowledge that can be used by librarians to develop their library´s activities with the help of role-playing games. The purpose of this thesis is to examine what function role-playing game activities fulfills or can be expected to fulfill for public libraries and library users and how these activities work. This is done by interviewing librarians who organize role-playing game sessions. As theory, the so-called four space model is used to categorize, analyze and discuss the empirical material. The results show that external factors and the librarians own knowledge and experience about role-playing games, characterize the design of the role-playing activities. The results also show that the librarians see many reasons for arranging role-playing activities at public libraries. These reasons are also consistent with the functions that the four space model describes that public libraries should provide, namely to function as places that promote: inspiration, learning, meetings and creation among library users.