I have created a game jam template for Unity users! Instead of worrying about a main menu, simple settings like volume or a pause menu, you can just work on your game!

Focus on your game, not the menus! It is completely free and you can change whatever you want!

https://hunterson-studio.itch.io/game-jam-template

With the main menu you can go directly go to your game, settings or quit the game. You can even change the credits, name and the link to your gam's page!

The settings menu has some simple options like changing the fullscreen mode, resolution and volume. Everything is super simple and you can change the look and code however you want!

And in your game's scene, you can simply drag the pause menu prefab and you have a pause menu. The game will freeze and you can go back to the menu or quit the game completely.