Garry's Mod
The game is an endless sandbox. Its base game mode, sandbox, has no goals. The player can spawn non-player characters, ragdolls, and props, and move and interact with the objects in many ways. The player can move these using the "physics gun", a ray-gun that lets the user move, freeze, and rotate the objects. The individual limbs of ragdolls can also be interacted with. The "tool gun" lets the player change an objects properties, like welding things together, and changing the facial expressions of ragdolls.