To publish a game, you will first need to create or remix a game you want to share. Then, follow these steps:

1. Tap the save button on the bottom right of the screen.
2. Write down a name and a description for your game. 
3. Now you will need to add at least one category for your game. This will make it easy for users to find your game when they search for specific hashtags.
4. Choose to publish as unlisted (meaning only you will see it) or not (everyone will be able to find it).
5. Choose to allow comments or not.
6. Tap the post button.