Garry’s Mod is a sandbox game, with many features and tools. You can do anything from build a house, to ride a mailbox through town. While playing, you get a sense of freedom and humor. Garry’s Mod is based on other games, like Halflife 2, and Team Fortress 2. There are hundreds of game modes to chose from. For gameplay commentary on this game, I recommend going to SeaNanners on YouTube.