Random and unique array's string to list

I can't get to work a random game per <li>. Each game should be unique.

var randomGames = ['Life is Strange', 'Titanfall', 'Call of Duty', 'Tales from the Borderlands', 'Assassin\'s Creed', 'Tomb Raider', 'FIFA']

<ul class="list-group"><h4>These are the games that James like the most</h4>
        <li class="james list-group-item">...</li>
        <li class="james list-group-item">...</li>
        <li class="james list-group-item">...</li>
</ul>