WORLD DESCRIPTIONS

Wildtouched Earth (better name needed).

Notable PCs: Richard, Melody

This is a modern earth, with a timeline roughly in the new tens,
depending on my storytelling needs.  It's a low magic, masquerade
setting.  Most people don't know magic exists, and of those that do,
the secret is closely guarded and kept protected.  There are three
main races so far: Humans, both magically capable and normal ones,
Wildtouched, who are shapeshifters into a single animal form and an
anthro shape, and Cursed, who are the result of magical attempts to
become wildtouched and are more traditional lycanthropes.

Into all of this, you have the Lapis Lazuli, who want to learn more
about magic and are nominally a government black organization, the
Druids, low magic people who help maintain the masquerade and protect
the Wildtouched, the Wildtouched themselves, mages who want to gain
power, and in the fae, who may ultimately be responsible for the
existence of WIldtouched at all.

Three Pantheons

Major PCs: Nathan, Thenyr

History goes exactly as normal until mid August 2001, when the plane
of magic and deities realigns with the mundane plane of earth,
bringing "realms" into existence in the locations of the Scandinavian
peninsula, Grecian peninsula, and Egypt, populated by monsters and
gods from the respective mythologies and pantheons.  Inside the
realms, magic works, but technology doesn't, and vice versa for the
"Scientific realm", which is all the rest of earth not subsumed into
the realms.  The gods aren't all on good terms with each other, and
they're on worse terms with most nations and earth religions, and this
forms the crux of the conflict.  However, the realms are actively
explored by enterprising "realmwalkers", and those who hire them. 
Some for adventure, some for money, some for exploration.  Takes
place roughly 2020s.

Wings and prayers

Major PCs: Kawheek, Thenyr

Based off the Greyhawk D&D setting, this includes the Thordani and
Asari as existing races in a small area in the southern part of the
Hellfurnace mountains.  Religious birdpeople who venerate Faenya,
they're at roughly a Bronze age technology level and fight to maintain
their villages against the encroachment of nearby powerful monsters
and fire giants.  Furthermore, they seek to rid the world of undead
and worship the sun.  Year irrelevant.  They are a martial, tribal
people with little trust for 'book magic' or arcanism, though they're
fine with divine holy magic.  Primary conflict themes are survival,
family, and maintaining the tribe against enemies.

Winds of change

Major PC: Patrick Altair (Cassandra Delarose canon immigrant)

In this setting, people going through puberty transform into an anthro
animal with possible superpowers.  The reasons are lost to history so
far, but the world has been drastically changed by this since 1996(the
date of the first changes of everyone over adolescence) and even more
by the Plague War (known as World War II in our world).  Population
is about half what it is in real life.  Powers run the gamut of
everything you might see in comic books, and everyone is a animal of
some degree (percentage towards animal form), with 50% mammal, 25%
avian, 15% reptile, 5% aquatic, and 5% Extinct or other vertebrate. 
Primary conflict arises in coming-of-age stories and general
interpersonal relations, made more complex by the morph variance. 
Additionally, the Natural Order, a group of predator supremacists who
wish to take over and eliminate prior history, lurk in the shadows.

Fur, Fury, Space

Major PC: Arrow Quincy Vershaft, (possibly Redtai Dacolis)

Following the discovery of an alternate universe with a high number of
habitable planets, our prime timeline used a one-time event to spawn
over large amounts of intelligent colonists.  Unforeseen events
resulted in not all of them being human, and consequently, anthros and
mythical morphs.  Think Wing Commander meets Starfox for general
feel.  Interstellar space opera to an extent, with aliens pressing
back on the "genesis" races in various wars.  Mercenary ships exist
as a major source of military buffer.  In the core canon for Jeff,
computers do not work below the "Mainframe" level, although I've
futzed with this myself enough to not be a hard rule.  Originally
dealt with the crew of the Cause, but at this point I'd feel
comfortable moving beyond that.