sandbox game, interactive physics, multiplayer, creative building, character customization, face posing, ragdoll manipulation, prop placement, game mods, user-generated content, puzzle-solving, Steam Workshop, dynamic lighting, open-world exploration, first-person perspective, community servers, diverse environments, in-game scripting, Lua programming, custom game modes, texture variety, material effects, realistic graphics, soft shadows, ambient occlusion, detailed models, high-resolution textures, 3D construction, physics-based gameplay, cooperative play, online multiplayer, modding community, PC gaming.