To make a gamepass on Roblox, follow these steps:

1. Log in to Roblox : Go to roblox.com and sign in to your account.
2. Go to the Create section : Click the "Create" button at the top of the Roblox homepage or go directly to create.roblox.com to access the Creator Hub.
3. Select your game : Under "Experiences" or "Creations," find the game you want to create a gamepass for and click "Manage" or "Manage Experience."
4. Navigate to Passes : In the left sidebar menu, scroll to the "Monetization" section and click on "Passes" or "Gamepasses."
5. Create a new gamepass : Click the "Create a Pass" button.
6. Customize your gamepass : Upload an image for the pass (or use the default image), give it a name, and optionally add a description.
7. Save the gamepass : Click "Create Pass" or "Save Changes."
8. Set the price and enable sales : Open the gamepass settings, go to the "Sales" tab, enable "Item for Sale," and set a price in Robux.
9. Save your changes : Confirm and save to publish the gamepass for players to purchase.

Remember, you must have a published game to create a gamepass, and you will earn 70% of the Robux from each sale. Also, you may need to script your game to grant the benefits of the gamepass to players who own it