Undersided is a worldbuilding project detailing the world of ʏᴏɴᴀ. The project is an expansion of the setting of Undertale by Toby Fox, and from the perspective of that community it can be seen as an AU. The official media for Undersided largely consists of excerpts from in-universe documents.

Periapsis is a star system generator that actually gets it right, generating detailed information on every star, planet, or moon. It also supports custom systems, so you can export and edit the JSON for a system and load it back in to view it in the app.

INTO THE DARK

An Undertale roleswap AU based on "Underswap"

Sulfur Network

What if Minecraft creepypasta characters were real?

JW!OUTERTALE

Same characters, different setting

true boundless god flawless

Exposing flaws in overpowered Undertale OCs

My Youtube Channel

My Discord Server

Paracosmian Discord Server

Paracosmian Institute (WIP)