Open Roblox Studio
Create or open your game
Publish the game to Roblox
Go to the Roblox website
Sign in to your account
Open Creator Dashboard
Select your experience
Go to Monetization
Click Game Passes
Click Create Game Pass
Upload an image for the game pass
Enter a name for the game pass
Add a description if needed
Click Create
Set the price
Save the changes
Copy the game pass ID
Add a script in your game to check for ownership
Use MarketplaceService to detect purchases
Test the game pass in a live server
Publish any script changes