Broken Age is a cartoony, story-driven point-and-click adventure game. The story revolves around two seemingly disparate teenagers. Shay has been stuck for his entire life in an isolated spacecraft specifically designed for kids, where the ship's motherly AI prevents him from doing or learning anything of consequence. Venna is about to become a human sacrifice for a giant monster. Both are looking for a way to alter their fates.

Like most of the contemporary adventure games, the game employs context-sensitive actions. Most of the puzzles are inventory-based. Players can change between the two characters/plots freely. The game was released in two parts not available separately and the second part was made available at a later date.