Alternate Universe

An Alternate Universe, or AU, is a separate universe to the main universe. Usually, these AUs feature many differences from the main timeline, though sometimes it can be something more subtle.

The concept was popularized by the Undertale fandom and was adopted by the Spekktrumverse and Petremay.

Several official AUs created by Spekktrum Studio already exist, though creation of other AUs by fans is highly encouraged. The main AUs that make up the Spekktrum Multiverse are the following:

Earth-1 - Otherwise known as the Spekktrumverse or even the Prime Universe, the Spekktrumverse is the primary universe for most media created by Spekktrum Studio.

Spekkswap - Otherwise known as Earth-1B, this is an AU where the roles of characters are switched.

SpekkRoll - Otherwise known as Earth-1C

Spekkshift - Otherwise known as Earth-1E, this is an AU where the roles of characters are shuffled or 'shifted'.

Shiftswap - Otherwise known as Earth-1EB, this is an AU where the roles of characters in Spekktrumshift are swapped.

Twistswap - Otherwise known as Earth-1F, this is an AU where the roles of the characters in Spekktrumtwist are swapped.

Alterverse - Otherwise known as Earth-1G, this is an AU where the roles of characters are shuffled, but again the roles are different from Spekktrumshift and Spekktrumtwist.

Alterswap - Otherwise known as Earth-1H, this is an AU where the roles of characters in the Alterverse are swapped.

Spekktrumspin - Otherwise known as Earth-1I, this is an AU where the roles of characters are shuffled, again different from the other shuffle AUs.

Rydia Universe - Otherwise known as Earth-2, this is an AU where Rydia is the mayor of Mirem instead of Melissa. Rydia is also gender bent in this AU, along with Mirem being much bigger taking up nearly half of the United States. This AU is loosely based off the original idea for the Spekktrumverse.

The Darkverse - Otherwise known as Earth-3, this is an much darker AU where Sarah becomes an evil monarch that had taken over much of the United States.

The Dark Universe - Otherwise known as Earth-3B or The Sarah Universe. Not to be confused with the The Darkverse, this is an alternate version of Rydia Universe B using the same premise as The Darkverse.

Miremfell - Otherwise known as Earth-4, this is an AU that takes place in an almost apocalyptic world.

Firethorn Universe - Otherwise known as Earth-5, this is an AU that takes place in a universe almost completely devoid of humans and where magic is much more common.

Earth-6 - A universe very similar to Earth-1 with a few minor changes. Originally intended to be part of Earth-1, it was created on an old Discord roleplay server that you can view here.

Earth-8 - Otherwise known as the 'KrisCraft Universe.' It is a universe which's lore was developed entirely within a Minecraft server, which you can join here.

## Dubiously Canon

All AUs listed here are to be considered Dubiously canon - as in they are not officially endorsed by Spekktrum Studio due to concerns over copyright, but in a technical sense they are 'canon' to the SCU multiverse. However, these universes may still exist in a fanfiction setting. Some of these were created before the forming of Spekktrum Studio and may only exist as scattered concepts or have underdeveloped writing.

Rydia Universe B - Otherwise known as Earth-7, this is an alternate version of the Rydia Universe created on an old forum roleplay. Characters from other established franchises had somehow managed to make their way into the universe.

Earth-9 - Similar to the Spekktrumverse except several of the characters have different names, personality traits and powers, and some characters from established IPs not created by Spekktrum exist within the universe. It takes a lot of inspiration from the idea for Rydia Universe B. It was created on a Discord roleplay server that was archived, you can view the archived Discord server here.

Earth-10 - Otherwise known as the 'Original Rydia Universe.' It is a crossover universe with Re-Logic's Terraria.

Earth-8404/UEarth-1 - Otherwise known as the 'Undertale Roleplay Community Universe.' It is a crossover universe with Toby Fox's 'Undertale' that exists as a Discord roleplay server that you can join here.