The periverser offerings include:
Nonfiction
An anthology of memoirs about several people who work in distressing-undesirable¹ professions:
- A daycare custodian who had an accident that caused them to lose their sense of smell. This was extremely distressing to them for the first month, due to the loss of taste and ability to enjoy food! The silver lining made itself apparent quite quickly when their friend mentioned on social media that a local daycare was in need of a distressing-undesirable specialist custodian and they discovered that their anosmia meant that they were markedly less put off by toddlers' bathroom accidents. They still needed to get used to the visual and textural aspects, but their quality of life increased once this hurdle was cleared.
- A surgeon who kicks² on the kind of medical imagery that most people are extremely distressed by. They used to feel like a bad person for their fascination with this imagery and with the notion of cutting into people, but a professional rubber duck³ brought up the idea of taking the distressing-undesirable exposure tests, which they passed. They still felt awkward while going through training, but has by now found a sense of community with their colleagues, who admire their attitude and ability to find fascination in daily work.
- A dentist who doesn't have a particular fascination with distressing-undesirable imagery and is simply much less squeamish than most people! They had a little bit of difficulty early on in their career because while a lot of their patients were put at ease by their casual, upbeat demeanor, some were put more on edge for an already stressful activity. This was mostly fixed by the dentist asking questions before appointments intended to gauge patients' overall mood and what they would respond well to.
- A construction worker who has a much higher tolerance than average for cold weather (and a corresponding much lower tolerance for hot weather). They particularly enjoy getting waved at by the subset of people who walk past sites they work at who tend to wave at construction workers, street sweepers, and other people who work outside.
The anthology is accompanied by some (appropriately labeled) pamphlets used in the distressing-undesirable exposure tests. The imagery starts out relatively tame and ramps up in graphicness as the test goes on so that applicants can be sorted by when they tapped out.
A textbook about the care and breeding of motherbeasts⁴. It has a brief history-of section but mostly focuses on the day-to-day practicalities, behaviors, and lifespans of the motherbeasts.
A book for children about popular pets, such as goldfish, pigeons, rodents⁵, and rabbits! Each animal group gets its own section on the history of that animal, its temperament and behavior, its care and breeding, and fun activities you can do with your pet! The history parts have lots of pictures and illustrations of the domesticated pets' wild and historical counterparts alongside the modern domesticated instances, the care parts have straightforward descriptions and illustrations of how the animals mate, and the "fun activities" parts are split between practical jobs animals can do (messenger pigeons!) and cute anecdotes (training your goldfish to swim through hoops for treats!).
A history of economics and how different cultures adopted money before the periverse, in an impressive feat of coordination, did away with money entirely. This is widely regarded as one of the best things to happen to humanity, alongside the existence of motherbeasts and the invention of the internet.
Fiction
A setting bible⁶ for a world divided into the material (normal mass governed by the laws of physics) and ethereal (magic, souls, minds). There are several types of sapient creature, such as vampires (ex-humans who can't produce ether on their own and must feed on the ether of others, the most effective way to do so being to drink blood, since humans' material bodies are bonded to their ethereal bodies, or souls), zombies (subset of vampires that eat flesh instead and gain a corresponding boost to physical strength), fairies (creatures that are entirely ethereal), angels (Really Powerful creatures that are entirely ethereal), and constructs (creatures that are entirely material). There's a weak masquerade but not much in practice actually stops interested humans from learning magic, particularly if they know how to summon fairies to teach them or if they have a natural talent for sensing the ethereal.
A novel about children for children where a preteen group of friends has extremely perilous adventures solving mysteries and fighting monsters! None of the protagonists actually die in this one but every member of the friend group comes pretty close in different and exciting ways.
A novel about children for adults where the highest stakes are "the protagonist is nervous about an upcoming piano competition because what if they make a mistake." It's full of detailed descriptions of home life where all four of the protagonist's parents take very good care of them and make good food and take them on fun activities - each parent has different hobbies and interests that they're delighted to share with the protagonist (and not too disappointed if their child isn't up to an activity on a particular day). The parents are all able to attend the piano competition, and even though the protagonist makes a minor mistake towards the beginning of the piece they aren't disheartened and manage to finish the piece without freezing up.
A prism⁷ set in a magic system where the protagonists are on opposing sides of a divide between the light-mages and the dark-mages. Much of the story is powered by the fact that light-magic and dark-magic are fueled by opposed aspects of one's self and personality, meaning that while the protagonists may share a basic underlying personality and template attractors, different parts of their self have been encouraged and harnessed over the course of their lifetime.
¹Catch-all term for certain professions, particularly medical ones that involve performing surgeries or dealing with nasty bodily functions, construction work, anything that involves being outside in inclement weather conditions, dealing with smelly garbage, particularly spoiled food, and anything else that would be dealbreakingly uncomfortable or unpleasant for the average person. Many Earth professions are split into work that normal people can do and something you'd call a distressing-undesirable specialist for: a custodian does routine cleaning of dust and spilled soda every night, while a distressing-undesirable specialist comes in on a case-by-case basis if, for instance, someone vomits on the floor.
²Like a kink, but non-erogenous.
³A kind of counselor who can give advice, but mostly just listens to their clients as they talk themselves into solutions that they possibly already knew on some level.
⁴A piglike, non-sapient animal that has the magical property of being able to accept genetic contributions from one or more humans and create/gestate a baby that is the offspring of all the contributing humans. It carries its young separately from human babies - both male and female motherbeasts are able to gestate human babies, but only female motherbeasts are able to carry motherbeasts.
⁵There are So Many Kinds of domesticated rodents.
⁶A popular genre in the periverse is "extremely thorough writeups of how a setting works." There's no plot; just descriptions of the SFF elements (the periverse doesn't draw a strong distinction between "fantasy" and "science fiction," so there's a term that covers both magic systems as well as things like the warp drive), alternate histories, types of cultures present, and so on. Typically setting bibles will also have descriptions of how the characters and/or plots of other media properties would alt into the setting in question.
⁷Extremely popular genre where alts meet each other. There are several subgenre: more earthficcy ones where the protagonists discover their althood after a lot of amusing-in-hindsight personality clashes, more magical ones where alts know they share a (usually telepathic in some way) connection but live far away, and ones where several sets of alts of different people meet up through multiversal travel.