Libraria is a complete information majorities and area control abstract game for two players. Players take the role of librarians who duel for the control of the books in the bookshelf, while trying to avoid book-eating mice. The board is created by 25 randomized tiles to keep the game fresh each match. Players take turns placing counters of their color on the intersections of the tiles. When the board is full (after each player has placed 18 counters), the majorities are checked for each tile. The player who has the majority of corners of a tile receives the books inside as points. A mouse is worth -1pt because it eats a book. In case of total control of the tile, the points received or lost are increased by 1.