You're a dimensional traveler, able to open portals to other universes and dimensions.

More Size Changing GTS Fun! This is primarily a shrinking/giantess story. Shrinking device plays major role. See what happens. New characters are welcome.

Tails create a mini ship to study his friend from the inside (PLZ ADD)

A human mage decided to go inside of our favorites ponies!

A mysterious resort on a pacific island, full of transformation.

A branching interactive story with the gals and pals of RWBY focused on size themes. Get shrunken down and explore the world of Remnant (and its inhabitants) at a much smaller scale!

A mysterious lady has the ability to shrink even whole buildings, that's what she does the unfortunate residents of one city apartment block.

A small boy, one of many, trying to live as best he can under the giantesses of the world. (copied from writing.com)

For the longest time, you've been teased by your classmate Bea. She somehow found out about your fetishes and uses that information to torment you. You can't explain it, but somehow you begin enjoying being tormented. One day, after purchasing shrinking pills off a shady website, you decide to live out your fantasies.

A story in the Harry Potter world involving insertion and unaware giantesses.

You are a guest at your best friend Rachel’s slumber party when you suddenly shrink. How long can you survive?

Sammy, born into a world of tiny men and giant women, is a hopeless pervert.

You wake up in the world of Equestria Girls as a tiny person.

Kelly’s trying her luck on the tiny side of Tinder. None of her dates are going very well.

A "Giantess/Endo" story centered around the Princess of Friendship (PLEASE ADD)

You wake up to find yourself an inch tall and all you can remember is last night's party. A restoration of Tinyman0001's first work.

Another chance for me to make a decent "MLP - Endo" interactive.

【Chinese text】在上完早上第一节法术课之后，正准备收拾东西下课的你昏了过去。醒来之后，自己居然缩小了！

Tails once again wants to enter inside his friends but this time, he got company

You are shrunk in the Sugarcube Corner! Things get Crazy! (Please add if you can.)