As you can see, the leaderboard shows up on the site of Murder Mystery 2. I want my game to also have this feature, but everything I've seen in for in-game leaderboards. If anyone can help me configure this, that'd be great! I've already figured out how to do the in-game leaderboard.
This is simpfully the PlayerPoints leaderboard. Take a look at the PointsService.
The more points you award to a player, the higher up the player will be on the Leaderboard.
You can award as many points as you want, as well as remove points from players. Good luck!
You can award points like so:
game:GetService("PointService"):AwardPoints(DesiredPlayer.UserId, Points)
The "Leaderboard" tab on a game page is just displaying how many Player Points a player has.
Here's a tutorial on Player Points.