《Light&Heavy》是一款第一人称探索解密游戏，利用核心机制——交换物体质质量，来完成解谜。 玩家所扮演的角色于梦境中迷失，四周都是陌生又复杂的建筑，心中一个意志在驱使着玩家去离开这个神秘的梦境。 玩家需要仔细观察场景结构，通过逐步交换场景中不同物体的质量，破坏稳定的梦境结构，一步一步解开谜题到达本来不可能去往的地方，抓住机会离开梦境。

“Light & Heavy” is a first-person exploration and puzzle-solving game. Players take on the role of a character who finds themselves lost in a dream filled with unfamiliar and complex architecture. A force within drives the player to escape this mysterious dream. Players must carefully observe the structure of the scenes and gradually manipulate the mass of different objects to destabilize the dream's structure, solving puzzles step by step to reach places that initially seem unreachable, seizing the chance to escape the dream.