Fairlight is a single-player adventure, casual, and puzzle game in which players control an adventurer named Isvar exploring a castle with a realistic three-dimensional isometric view. The game involves manipulating objects with unique physical properties, stacking items to reach higher areas, and solving puzzles by discovering the uses of various objects like keys and magical items. In this game, the setting is a mysterious castle filled with secret areas, enemies such as trolls, monks, guards, tornadoes, and man-eating plants, and various hazards. Isvar must navigate through the castle, battling enemies, collecting food and potions to restore health, and uncovering hidden passages and secrets to progress. It stands out with its detailed physics-based object interactions, the ability to stack objects for strategic movement, and a dynamic combat system where defeated guards leave helmets that can be used to manipulate the environment or distract enemies. The game emphasizes exploration, puzzle-solving, and strategic item use within a richly themed fantasy and historical castle environment.