This is a free robux game. For every minute you are in the project, you get 1 robux. The robux may take 1 or 2 weeks to arrive, and you only get 60% of the robux shown on screen. You have to have gamepasses for sale. If you don't, go to the roblox website, click on the create tab, click the three dots on <your username>'s place, click open in new tab, click the three dashes, click settings, and change the privacy of your game to public. Now click the three dashes again and click passes. Now click create a pass. Name it whatever you want and click create pass. Now click on your pass again and click the three dashes. Now click sales. Set the item for sale to on, and make it anything from 2-10. Now repeat this process for more passes which are priced from 2-10 robux.
