To import a 3D model in game dev, export it from a 3D tool (e.g., Blender, Maya) in an engine-compatible format (like FBX, OBJ), then use the engine’s import feature (e.g., Unity’s “Import New Asset,” Unreal’s Content Browser) to add it to your project.
FBX is preferred because it retains animations, bones, and textures—key for interactive models—while OBJ works for static shapes but lacks animation support.
If the model breaks post-import, fix texture paths or adjust export settings (scale, axis orientation) to match the engine’s requirements.