Sienna in the Stars

Abstract dice-rolling game created by five-year old Holly Stallard, and published by Games 4 Geeks.

Using a single dies, players roll to see who will win, depending on the outcome of the die.

This is essentially a gag game, as the way the designer (who as stated above is five) has created the rules, the youngest player can't fail to win.
Whether this was originally intentional, or just a lucky accident on the designer's part is currently unknown.