Wedding dress up games
A wedding is the one occasion where the outfit is the event, which is why this is the only shelf here with games that let you build the dress instead of choosing it.
My Sister's Wedding Day 
Princess The Day Before My Wedding 
Building a gown, not picking one
Wedding Dress Design 2 hands you the parts rather than the dresses: bodice, sleeves, skirt, train and veil are separate decisions, and they have to agree with each other. Get the sleeve wrong and the whole silhouette argues with itself. It is the deepest game on this shelf and it is not close.
Everything else here starts from finished gowns, which makes it quicker and much easier to get a good result on the first try.
The rest of the party
A wedding is not one outfit, and the bridesmaid games set the harder brief. Anna And Elsa Glittery Bridesmaids has the rule in its purest form: the two of them belong together and neither one is allowed to disappear, so identical is wrong and unrelated is worse. Babs' Spring Wedding is the same problem with three of them and a spring palette on top.
When it goes wrong on purpose
Bridezilla: Prank The Bride opens with coffee down the dress an hour before the ceremony, which is a far better brief than a calm wedding. A wedding with no disaster in it is a catalogue.
Weddings that are not white
Steampunk Wedding lays a costume rulebook over the day, and the two sets of rules fight: a wedding wants white and a clean line, steampunk wants brass, leather and goggles. Enchanted Wedding is larger than it looks, because the gowns, the bridesmaids and the venue all have to agree on one theme.
If the gown matters more than the occasion, princess has the ballgowns. If you want the whole look rather than the event, fashion is sorted by aesthetic.
Frequently asked questions
Can I design the wedding dress myself?
Yes. Wedding Dress Design 2 builds the gown from separate parts, bodice, sleeves, skirt, train and veil, instead of giving you finished dresses.
Are these wedding games free?
Yes. They open in a tab and run there, with nothing to install and nobody asking for an email.
Can I dress the bridesmaids too?
Several of them are about the party rather than the bride, which is the harder brief: a group that matches without being identical.
Do wedding dress up games work on a phone?
Yes. They are built around tapping and most of them are portrait friendly.
Is there a game with non-traditional wedding dresses?
Steampunk Wedding and Enchanted Wedding keep the shape of a gown and abandon the usual palette.