Open the Messages app on your iPhone or iPad
Open a conversation
Tap the App Store icon next to the text field
Search for the game you want
Tap the game to open its App Store page
Tap Get or the download button
Authenticate with Face ID, Touch ID, or your Apple ID password if prompted
Wait for the game to install
Return to the conversation and tap the game icon to start playing
If the game is not available in iMessage, download it from the App Store instead