Anna And Elsa Arendelle Ball

Hosting is a different brief from attending, and the game leans on the difference.

Anna and Elsa are running this ball, not turning up to it, which sets the formality ceiling: the hosts have to outrank the guests without appearing to compete with each other. Two gowns, two sisters, one room. The design stage lets you build the look rather than pull a finished dress off a rail, so shape, colour and trim are separate decisions taken in sequence.

Give the sisters a shared element and a clear difference. Same fabric family, different silhouette, and the pair reads as deliberate.

Egirlgames, free in the browser, and it plays on a phone. Nothing is saved, so screenshot both gowns.