Your world has been destroyed. I saved you. Let's all be happy here.
Tower of Animus is a Journal Roleplay which began on Livejournal but moved to Dreamwidth.Somewhere, in a world not associated with any other, there's a lone Tower surrounded by fog. This Tower has no entrances and no exits; people simply wake up in a bed provided for them, and are given some of their possessions in a trunk and a couple of letters explaining the situation. (See above.) From there, they are trapped in the Tower and expected to live there, under the watchful eyes of the Tower administration; for better or for worse.
This game provides examples of:
A House Divided: The managers have begun to turn on each other, and are now getting the residents caught up in their antics.
The admins appear to be attempting to invoke this in the Tower residents as well, including things like brainwashing people at random to try to discover resistance efforts, and a rather pointed reference to Pandora in the Idealism event
The Hitori Kakurenbo event featured living teddy bears that killed whoever they encountered.
Kanji Tatsumi was slowly turned into a bear during the Infighting event. Which ended with him being covered in pink fur, having no organs, his entire body being stuffed in fluff and his brain taken out.
Captain Cinnamon Claws has become particularly notorious among the player base.
Every single soul from the universe your character originates from has been revealed to be in the Tower, too. Except they're not really themselves, anymore. Rather, they've become Psychelysis Phantoms.
Clingy Costume: During the Trick-or-Treat event, characters woke up dressed in various Halloween costumes that could not be taken off.
Colour Coded Characters: The collar colors of all the different characters (which are assigned by the mods upon acceptance into the game), though why characters get the colors they do is up for debate.
Averted really, really hard with Ruana's backstory. She was among several children experimented on for their superpowers and the only survivor.
Involuntary Battle to the Death: The Labyrinth Experiment took several characters into a labyrinth where they had to kill each other until only one was left standing. And just to make everything better, each character already had a collar around their neck. (If they attempt to take it off, one wonders, does the collar explode?)
This is what happens when the collar is removed. Any attempts by the character to remove it are futile.
Pretty much how Jade!Eridan got his arm back, via Teal!Feferi.
Said AU!Minato ended up lobotomized for trying during the Infighting event, but he somewhat succeeded when he went on a mass-murdering Ax-Crazy rampage after AU!Karkat's mind and emotional manipulation abilities took hold of him. Sadly, it did no good.
In a more straight-up example, there are multitudes of identity-less tower drones - people with red or clear collars who seem to lack any will of their own, that perform various tasks and busywork about the place.
Our Souls Are Different: Directly invoked. According to the research Dax left after his death, the soul in Animus' world seems to be defined best as the sense of self/identity, so that even characters who might not have their world's definition of a "soul" have one in the Tower
Universal Translator: It doesn't matter what language you see, speak, or hear: the Tower somehow translates it, though everything in the game is WRITTEN (mostly) in English.
Wedding Day: Reno and Elena's wedding was a large enough affair that Ruana and Zo came and it all went downhill quickly. When Aleph and April got married, they minimized the time between engagement and wedding, invited only a few people, and put up demons as guards so that didn't happen again.