gm_construct is the legendary default map of Garry’s Mod, serving as the ultimate sandbox for creativity, physics experiments, and bizarre player-created scenarios since 2004. While initially a bright and open playground, the map has evolved into a symbol of 'liminal space' horror, with many players reporting a sense of being watched, especially near its infamous dark room. Memes involving gm_construct often lean into this uncanny atmosphere, nostalgic gaming memories, or the chaotic nature of spawning thousands of NPCs. It remains a cornerstone of PC gaming culture and the Source Engine's enduring legacy.