Welcome to The Unofficial Undertale Adventures Wiki

The long awaited Hotlands has finally been added into Undertale Adventures! And with it comes new units, items and more! Currently only whats available in the banner will be getting added today, maybe more sometime later today, but that isn’t certain for now, enjoy the new update everyone. Quick edit here btw, forgot to mention that I have yet to get the experimental info page for Froggit up yet, didnt realise the Hotlands update would release so soon, sorry about that everyone.

-Added the Hotlands Banner to the Banners Page

-Added new units to Hotlands Banner/Towers, units that were added are Vulkin, Tsunderplane, Heats Flamesman, Pyrope, Royal Guard 01, Royal Guard 02, Alphys, Mettaton and Muffet

-Fixed a small spelling error found within the Waterfall Banners page

(6/4/2025) -DELTARUNE IS TODAY, and with that comes new info! I apologize for not having updated this place in a WHILE. I’ve been going to college since graduation and haven’t had the time to really do much else, HOWEVER, I am back temporarily! And don’t worry! I can still keep this website running until maybe 2026 or 2027 before I need to worry about not having the money to keep going, VERY big maybe, anyways! Here’s the new stuff that’s been added today! Also note that due to recent changes, some units have had their profile colors changed, thank Side for doing that. Also, I plan to rework the way these are all being written down, just to make things look a bit cleaner of course, but I don’t know if and when I will be doing that

(6/4/2025) -Delayed certain additions that were supposed to be made last time, apologies

(6/4/2025) -Added the missing units Loox, Migosp and Toriel to the Ruins Banner/Towers page

(6/4/2025) -Added the Christmas Banner to the Banners Page

(6/4/2025) -Added new units to Christmas Banner/Towers, units that were added are Snowman, Ink, Blueberry, Dream and Sansta

(6/4/2025) -Added TS!Underswap Banner to the Banners Page

(6/4/2025) -Added new units to TS!Underswap Banner/Towers, units that were added are TS!Sans and TS!Papyrus

(6/4/2025) -Working on an experimental “About” page for Froggit, click on their icon to access it once it becomes available next update, which will be rather soon hopefully

(11/14/2024) -Hey everyone, sorry the updates aren’t rolling out as often as when this website first opened, daily life and all that, but also because I am currently workshopping the profiles for each currently available unit in the game/wiki, I want it to look nice, easy to understand, and also just informative over all, so it’ll take me a while to get everything I need from all the units as well as a good design for their profiles, just wanted to drop a short summary on that so no one gets the idea that this place was left behind, so no worries there! Got a little more news than just this too!

(11/14/2024) -New sections to be added in Towers Page for Pacifist, Genocide & Neutral Units next week

(11/14/2024) -Missing evolutions for Undyne and Snowdrake will be added alongside the missing Ruins units, these are only their portraits, descriptions for units have yet to be made

(11/14/2024) -New ??? section “may” be added to the Towers Page… if the time is right anyways

(11/8/2024) -Decided to add this stuff in for the 8th of November instead since I found out the Halloween event would end today, enjoy the new stuff I’ve added

(11/8/2024) -Added some small quality of life additions here and there

(11/8/2024) -Fixed some grammatical errors, changed/added a few words and added more “pizazz”

(11/8/2024) -Added the Halloween Banner to the Banners Page

(11/8/2024) -Added new units to Halloween Banner/Towers, units that were added are Horror Papyrus, Horror Toriel, Horror Sans and Reaper Sans, missing Ruins units will also soon be added in Towers and Banners, Items Page “might” be added in at some point next update

(11/7/2024) -New info coming later today on 11/7/2024, along with some new planned info on what’s coming to one of the pages and more, stay tuned

(11/4/2024) -Added Banners Page, I had to delay it twice on my own time because I didn’t like how I was going about it, I apologize for not meeting the timing I promised, info on Banners is now available after the unfortunate delay, however the event banner for Halloween will be unavailable because of the stuff I still need to obtain

(11/4/2024) -Added Undyne Unit to Towers/Banners Pages

(11/3/2024) -Added Horror Flowey Unit to Towers Page, Banner Info will become available 11/4/2024 at around either 11 AM (MST) or 12 PM (MST)

(11/2/2024) -Added Website News section to the Home Page, this will allow those of you who pass through this site to know what’s been added and what’s been changed

(11/2/2024) -Added Evolutions Page, Info on evolutions has now been made available
[It’s still only portraits and there’s only 1 available evolution, but it’s still new nonetheless!]

(11/2/2024) -Added Waterfall Units to the Towers Page, info on Waterfall units has been made available, missing units will still be added eventually
[All this info is coming from my personal experience, so it’s up to luck on whether or not I can obtain all the available units in the game, which may take some time to do]

(11/2/2024) -Website Support? This is less news and more like a question for the future, depending on how things go, I might add something to this page to make it possible to keep it up, but in the meantime, I’ll be writing down and add as much as I can to this wiki before I have to begin to worry about how I’ll be able to support it