If you're a game developer on the Roblox platform, you may want to add new 3D objects to enhance your game. Here's a simple guide on how to do it:

1. Create or download the 3D object you want to add to your game. You can use software like Blender or other modeling tools to create your own objects, or you can find pre-made ones in the Roblox library or other 3D asset marketplaces.

2. Once you have your 3D object ready, import it into Roblox Studio. Open your game project in Roblox Studio, and then click on the 'View' tab and select 'Explorer' to open the Explorer window.

3. In the Explorer window, right-click on the 'Workspace' and select 'Insert Object'. This will create a new object in your game.

4. Select the object you just created and go to the 'Properties' window. Here, you can customize various properties of the object, such as its position, size, rotation, and appearance.

5. If you want the object to have any interactive functionality, such as moving, rotating, or triggering events, you can use scripting to add these behaviors. You can use the built-in scripting language in Roblox Studio to write code for your objects.

6. After you've finished customizing your 3D object and adding any necessary scripts, you can test your game to see how the object looks and behaves in the game environment.

7. Once you're satisfied with the object, you can publish your game to make it available to other players. Players can then interact with the new object you've added to your game.

By following these simple steps, you can easily add new 3D objects to your Roblox game and enhance the overall gaming experience for your players!