Game
UNDERTALE: Extended Underground Mod
7 days ago

PROGRESS UPDATE: June 2026


Hello again! We have some new and some great things for the project!

So a special thanks for our new team members @TomatoUnderground and @tntaro for doing this!

New Mechanics! (Thanks to tntaro)

Tntaro had added some new mechanics for the mod and also some other additions for it.

RUNNING

utextendedunderground_bjgeplcdyu.gif

By holding [X] you can sprint and walk more faster! (I still plan make Running Frisk sprites in the same esque of UTY.)

TEXT SKIP/WRIST PROTECTOR

utextendedunderground_y1a6zjuvtg.gif

By holding [C] in some dialogues, you can skip most of a dialogue messages (as in Deltarune.) (The gif might not show this but most of the dialogue lines are skipped by doing this)

Now some new little thing for Catacombs.

image.png

One of our team members, TomatoUnderground made battle sprites for some of the Catacombs Monsters. (Some of the sprites had some edits by myself) So thanks to Tomato!

utextendedunderground_fatndaehyr.gif

Also, Tntaro helped made it to make the rock puzzles on Catacombs workable too! Of course is only this first one but we hope try finish of these puzzles.

But, I've also decided make some change of plans for Catacombs.

Catacombs will now be placed next to Old Home, after some discussions.

Here's the previous layout of the Ruins with the new areas.

oldmap.png

And now the new layout of the Ruins with the new areas...

newmap.png

Of course that we gonna need also makes soem changes there, but we still expect try finish the extended map of Old Home. So please be patient!

As of now, thats everything new we had.

See you soon!

~ Kai.Dusk

Game Dev
Undertale
15


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