Hello everyone!
We’ve managed to release the demo somewhat in time for Undertale’s birthday. This is still a bit buggy in some parts, but we’ve added an auto-update feature, so usually we’ll have fixed a bug or two whenever you re-open the game. Feel free to report any bugs you may find, this is kind of a beta-ish demo. Have fun! <3
By the way, if you make a video on this game, please put #disbeliefgame in the description, so we can find ya!!!
Disbelief Fanart Contest - May 2026
Localization system is going smoothly.
The car is too tall to jump over...
Hey there Undertale community! 
I'm the creator of Disbelief Papyrus / Undertale: Disbelief and I'm inviting you all to join the official Undertale: Disbelief community on Game Jolt!
Hope to see you there :D
https://gamejolt.com/c/disbelief-vsnej6
Much love - Flames
I've been working on an option for the game to support higher frame rates. This works with any frame rate so long as it is within a multiple of 30 (60, 90, 120, etc.) It will be 30 by default, but you will be able to change this in the SETTINGS menu.
Today marks the 9th anniversary of my Undertale fan animation "DISBELIEF" on YouTube!!!
As you know, we're currently working on Undertale: Disbelief, the playable fangame version. Expect an update post later today, along with a little community challenge!
Phase 4 is mostly complete.
Welcome everybody, to the brand new official Undertale: Disbelief community on Game Jolt! We hope you'll come join and hang out!
An unexpected encounter... https://gamejolt.com/c/disbelief-vsnej6
Winner of the May 2026 Fanart Contest
118 comments