Comments (241)
Undertale Last Breath Phase 3 RTF's Take 2
Undertale Ultra Sans Fight RTF's Take
Undertale Last Breath Phase 3 RTF's Take
Undertale - Battle Sumilator - Dusttrust Phase 1 By RTF Nerfed Mode Complete!
> https://youtu.be/I8gg4o5YkcQ
Undertale - Battle Sumilator - Ultra Sans By RTF Nerfed Mode Complete!
> https://youtu.be/m7ZhOnl_VWI
Undertale - Battle Sumilator Last Breath Phase 3 by rtf Nerfed Mode Complete!
> https://youtu.be/X2V4zTXV6A0
Му gameplay Debug Mode - https://youtu.be/K0utPm70DCQ
I just finished Dusttrust...and I have to say, this is almost a Christmas present for a Dusttrust fan, everything in this game is simply perfect for me.
Phase 1 is difficult but MUCH easier than the others, but it's still of excellent quality.
Phase 2, I would say, was the HARDEST of all, and the one I spent the most time trying, and it was INCREDIBLE.
Phase 3 was VERY fun and very unpredictable, the cutscenes, Sans and Papyrus interacting with each other...it was just...incredible.
And phase 4...WAS SIMPLY THE BEST I'VE EVER SEEN, great design, insane difficulty, and very epic.
Man...I can only say...thank you for making this masterpiece.
Awesome game :)
https://www.youtube.com/watch?v=AM57MuVmSwQ
Free
Undertale - HQ
This game is compiled with YYC. So if you want to port this game to android or other platforms, Please let me know in the discord server.
Free
UTHQ - DUSTTRUST
A standalone DUSTTRUST game released in 12/15/2025.
Free
Old Games Package
These are the collections of my old games.
Since FDY style was a trend back in the day, the attack designs are really bad. So I suggest not expecting anything much from this!
Undertale - HQ
Supported Language: English / í•œêµì–´
The Purpose of Undertale HQ
Undertale HQ is a software of the collection of Undertale fangames. This game aims to provide not only famous AUs like Undertale Last Breath, DustTrust, etc, but also classic games like Save Goatbro, and original content that you've never seen in any other games.
What Happened to Undertale Battle Simulator / Typical UF Lists
If you're an old follower(which is approximately 3-5 years old?), you'll probably notice that Undertale Battle Simulator and Typical UF lists are no more. This is because they are a total mess and I don't want to make a new trash layer of that rotten cake. Undertale HQ is where I make my amends to fix my mistakes. If you still want to play it, you can check "Old Games Package".
System Requirements (Subject to change depending on updates)
CPU: Anything that has more than 2 cores
RAM: 2GB
Storage: 150MB
OS: Windows 8 with 64-bit support
Unofficial Ports
Undertale HQ has a lot of ports to make it run on other OSes like Android. But note that those ports are not made by the original creator, RTF. The creator only supports people who do this by giving yhe special build of Undertale HQ to make it easier to port.
You are responsible for any risk using the unofficial ports.
False Positive
Undertale HQ uses the special extension file named UTHQEXtension.dll, which interacts with your Windows system to make things much safer and convenient to control. This file is 100% safe and if your Anti-Virus detects it as a dangerous file, You can ignore the warning and play the game.
Source Code / Resources
There's no plan of open-sourcing Undertale HQ as there are confidental resources in the project folder. Currently, some people who have my trust have the access of it, for the educational purposes or my personal problems in this project. However, The template of Undertale HQ is planned to be public after things are complete.
If you want to use some resources such as sound effects or sprites in this game, You can join the server or send me the friend request on Discord(realrtf) to get them.
Mild Cartoon Violence
Fantasy Violence
Mild Realistic Violence
Realistic Bloodshed
Mild Language
Comical Shenanigans
