Are all the Undertale concerts/orchestras official?

Undertale Discussion
1

I know there was the 5th anniversary concert back in 2020, but I’ve heard others, including a 10th anniversary one that apparently happened, and I wanted to know if anyone here has any more info on them, like how many there are, which got put on youtube, if they’re official or not, that type of stuff

2

No concerts happened!? WTF U TALKING ABOUT??

3

I think the only thing that happened for the 10th anniversary was the stream, with all the new stuff.

4

You mean the Wrong Number Song Remix? That's not a concert, it's a in-game remix. That's like calling an OST an orchestra or smth

5

"Oh it's the wrong number, the wrong number song! We're really really sorry that we got it wrong!"

How does one even remix that?

6

CMT managed

7

People made remixes of the “Cool Beat” bed lump sound, it’s possible to remix anything.

8

https://youtube.com/playlist?list=PLYCNNnepz9Cif8s4HdKIOMZIwWd-K66JV&si=ydxU3bMa3K1W93An

https://www.youtube.com/watch?v=b_mf-mSWzL8&t=191s

I’m talking about these two, and any others that people might know of, I wanted to know whether they’re official or not and such

9

Still looking into the other two, but there was an Undertale LIVE orchestra that had happened in 2019 - 2022ish. It was endorsed by Toby, based on this post, and the audience could influence the performance’s direction.

Undertale LIVE also has their own Bandcamp album.

Edit: Adding Undertale LIVE’s site here since I’ve got a bit more context for others.

10

So for the two you shared:

The Undertale 10th Anniversary Concert is real. Still has some plans to play in 2026 too! It has its own website, and Fangamer has reblogged dedicated merch for it. But this concert is exclusive to Japan! The fun perk about it: it’s being handled by MUSIC Engine, which is the same orchestra that performed the 5th Anniversary Concert.

The 10th Anniversary Orchestral Concert: The Determination Symphony was also real. It’s a 1-time concert. It also has the same Annoying Dog-themed logo as Japan’s (which is also for the 10th Anniversary Stream), so this is also real. It appears Materia approved at the very least, but I couldn’t find any posts from Toby or Fangamer about it.