The Casino was added to GTA 5 in the Diamond Casino and Resort DLC in 2018. The update added a ton of new content to the game including a new property called the Casino Penthouse. This article lists the different steps to purchase and customize the Casino Penthouse in GTA 5.
How to purchase and customize the Casino Penthouse in GTA 5:
Step 1: Open the in-game smartphone.
Step 2: Select the money and services tab.
Step 3: Open the Diamond Casino and Heist website.
Step 4: Select the ‘Get Started’ option.
Step 5: Select the different add-ons and select the ‘Purchase’ option.
Step 6: Go to the purchased Penthouse.
Step 7: After the cinematic that plays, open the interaction menu.
Step 8: Select the ‘decorations’ option to start customizing the Penthouse.