Seeing the modding community mentioned in the 10th anniversary event made me want to shill my own mod.. So here's a deltarune mod i made with buddy chistosito.bsky.social that connects to the bingosync.com website and automatically marks a bunch of very specific goals!

It feels incredibly special to be included in this. Thanks y'all.

I've yet to recover from the mental whiplash of seeing the names of people I work with in official Undertale credits.

Hey, that guy on the left looks like he’d make a cool main antagonist… #undertale

We did it guys We uploaded the unique music / battles from the stream on the bottom of the page here if you want to check it out! undertale.com/10/

This is what being a deltarune modder looks like

They still wouldn’t let me sleep in the water cooler on set either

The UNDERTALE 10th anniversary Tiltify auction is up, with two items up for bidding: a giant Toriel plush and a 10th Anniversary TV Diorama. All proceeds go to Doctors Without Borders. tiltify.com/@fangamercom... #undertale

i went from being so bad at hollow knight that i had to cheat to beat it... to 100%ing silksong (legitimately i promise)... crazy character development...

If you solve the piano puzzle in the room before the Jackenstein battle without finding all of the hints for it, Ralsei's dialogue will change. #Deltarune #DeltaruneChapter4 #Ralsei

Inside the code of the unused stable in Undertale, there is a variable called bibblybeebly set to 349382 which is never used in the code again.

Elegant enough for any occasion. Preorders for the Sans & Papyrus Salt & Pepper Shaker Set are open now: www.fangamer.com/collections/...

SPACE HOLE is now available on Nintendo Switch! www.nintendo.com/us/store/pro...

🥀

I beat Deltarune GeoGuessr with @trinky44.bsky.social

If you use the "Cheat" act in battle against the Pippins multiple times, Susie gets bored and draws on Kris and Ralsei's face.

Back in stock in our official UNDERTALE collection: www.fangamer.com/collections/...

i got a cold 🥀 🥀 ts was bound to happen im cursed with the sniffles every single time autumn comes around without fail

Fruity Rumpus Asshole Factory, an officially licensed Homestuck fan collective, has updated to add more easter eggs in the username selection. Two of which reference the fan character Togore since they made a cameo in Jester quest.

and here's some quite early #art for ch4.

one last round of deltarune #art for now. i had a lot of fun.

it's been a while since it came out, so here's some concept #art from deltarune ch3. i'm still really fond of this one.

light em up

If you press the Z key right before each Rude Buster explodes in this cutscene, the Rude Busters will have a different sound effect and a larger explosion. #Deltarune #DeltaruneChapter4

Undertale isn’t just a game, it’s a legacy. 10 years later, we still hold its characters close and even built a whole multiverse around them. Thank you Toby Fox, and thank you to this community for keeping the magic alive. ❤️💙💜💛💚🧡🩵

For Undertale's 10th anniversary, Toby will be streaming a play through of Undertale, similarly to how Deltarune Chapter 1 was streamed on the 6th anniversary. It will take place over two days, on September 20 and 21.

newletter...

For UNDERTALE's 10th anniversary, we are going to do 2 consecutive days of streams where we play through the game! The event will be run across two days at 4PM PT on September 20 and 21. You'll be able to watch it here. undertale.com/10/

『UNDERTALE』のPC版がリリースされて、今日で10周年！本日配信のメルマガ2025年秋号は、その話と、それ以外の話題も盛りだくさんです。ぜひチェックしてみてくださいね。

Undertale is once again on discount on Steam, this time for 75% off for the anniversary, along with the soundtrack being 60% off. Offer lasts until September 20th. store.steampowered.com/app/391540/U... #undertale

WHAT DO YOU MEANNNNNNN IM ONLY AT 55% COMPLETION

This is how long it took me to "beat" Silksong. I've done as much exploring as I reasonably could, and I STILL have more to go through to get the true ending. Even though i'm the type of mf that spends 1 hour+ on every boss, it was still fun. Great game but still not over

During Round 1 of TV Time, it is possible to end the cooking minigame early by getting the popularity meter to max. However this does not apply to the arcade version of the minigame.

is this literally anything at all

my first jacket design: the Megalovania Jacket! A souvenir jacket featuring Sans to commemorate Undertale's 10th anniversary. Preorders are up at @fangamer.com! www.fangamer.com/collections/...

The duo of Addisons in this room in Castle Town change every time you enter the room (always in the order of pink/orange, orange/yellow, yellow/blue, blue/pink) and each duo comes with their own set of unique dialogue. #Deltarune #DeltaruneChapter4 #Addison

They're finally here

The Monster Kid plush is available for preorder! I designed Monster Kid for Toby and he surprised me by giving the character an elevated speaking role in the game, it made me really happy. And now I’m really happy seeing this beautiful plush of my child 💕 Happy anniversary, Undertale!!

Our UNDERTALE 10th anniversary collection is now live! Featuring the Megalovania jacket, the Delta Rune Ita Bag, and more, including a special collaboration shirt. It's all available for preorder starting now: www.fangamer.com/collections/...

they're calling me a prophet (has been my status for almost a week)

when i was on the bus home today, i saw some towels set out to dry on a random balcony. one was pink and the other was yellow. i will never escape

Captain Toad: Treasure Tracker (Switch) is $27.99 at Best Buy buff.ly/oQk0KNO #ad

If you wait for long enough after Susie spins into Ralsei in the tutorial for the Monster Movie minigame, Ralsei will eventually pose on top of Kris's head. #Deltarune #DeltaruneChapter3 #Ralsei

Kris's sliding animation was updated in Chapter 3, being remade and having more than one frame. Although in Chapter 4, the new sprite is still used but is only one frame.

if i ever beat silksong (maybe i'll 100% it), i don't think i'll ever touch it again outside of maybe short speedruns. the game is just way too hard for me and it's getting tiring grinding every boss for 2 hours because i can't get past the first few phases and i happen to [1/2]

Some music files in Deltarune still have metadata associated with them and tells us when they were composed. Checker Dance, Chaos King, and Your Power were composed in 2016. Lost girl, Ferris Wheel, and Black Knife were composed in 2018, as just a few examples.