Best free Mac OSX adventure games

Adventure games are video games where the player follows an interactive story, solves puzzles, and explores the environment to advance the narrative and complete the game. The focus in adventure games is on storytelling, which can be conveyed through graphics (hand-drawn 2D or polygonal 3D) or, in the case of interactive fiction, through text. Some of the most popular adventure game subgenres include point-and-click, visual novels, and interactive fiction.