Undertale Plus supports addons from very talented developers with their permission. The first release will have 4 addons available, with more to follow.
Release:
Fully revamps the entire game to support Deltarune battles.
By LuigiUTMC
Every turn, your SOUL changes color!
By LuigiUTMC

Feeling like the master of the Burnt Pan? Test your quad-hitting skill!
By LuigiUTMC

Embark on a 6-hour long journey across the desert. One misstep, and it's back to the start with you!
By CiblesGD and Chrono Sariel

Post-Release:

Play Undertale online with your friends! Features custom skins and UI!
By Landimizer and LuigiUTMC

Ever wanted Undertale to be controlled by your Twitch Chat? Embrace that dumb fantasy with Chaos addon!
By LuigiUTMC

Could you give me a second? I'm fighting Undyne the Undying in the Ruins rock puzzle room...
By LuigiUTMC

Venture into a more menacing underground... Who knows what's in store for you there?
By The Undertale Plus Development Team

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