5 Ways to Celebrate Undertale’s 10th Anniversary with DETERMINATION

Casey ScheldSeptember 21, 2025

5 Ways to Celebrate Undertale's 10th Anniversary - Gamers Heroes

Toby Fox’s Undertale is celebrating its 10th anniversary!

This indie sensation has an incredible legacy, with countless fans worldwide and even an appearance in Super Smash Bros. Ultimate!

From fandubs to music to even full-fledged fan games, celebrate the 10-year anniversary of Undertale with DETERMINATION via our guide!

5 Ways to Celebrate Undertale’s 10th Anniversary

Deltarune Lost Media – Both Official and Unofficial!

The fans at Fangamer have stolen our SOUL with their merchandise that has been inspired by some of the greatest games ever made.

As part of an official collaboration, the Spamton Sweepstakes gave Deltarune Chapter 2’s favorite 1997 salesman time to shine.

But that’s not all! Recently discovered in a dark alleyway, Tenna’s TV Training has come to light courtesy of Sight Seeker. While an unofficial Deltarune video, this video is coming straight from your house and has more than 390K views as of this writing.

Needless to say, it’s TV! TIME!

Fan Dubs of Deltarune’s Greatest Moments!

While titles like Deltarune keep the voice acting to a minimum (unless the world is revolving…), a number of professional voice actors have lent their talents to re-dubs of some of the series’ best moments.

Professional Voice Actor Alex Rochon (The Amazing Digital Circus’ Caine) is most certainly a big shot in the space, stepping into the big shoes of Spamton G. Spamton and a number of other roles through multiple dubs.

Alex Rochon even got a number of his professional voice acting friends in on the Deltarune fandubbing action for a trip to the DARK ZONE, including Dawn M. Bennett (as Susie) and Joshua Waters (as Ralsei)!

Deltarune Prophecy Creation Tool!

As it was written, fans can create their own prophecy based off of the style found in Deltarune Chapter 4 with the Deltarune Prophecy Generator tool.

While fans are still unsure what the Sanctuary’s shattered prophecy had to say (we blame Susie), this versatile tool lets fans upload an image, choose their own unique style, and then export their own Deltarune prophecy as either a PNG or GIF file.

Music Collections for both Undertale and Deltarune!

Video game cover band extraordinaire The OneUps recently released an Undertale EP that covers some of the hottest tracks to ever grace the Underground.

Featuring jazz, funk, and lounge arrangements of “Dating Tale,””Undertale the Two of Us,” and “Uwa!! So Temperate,” these arrangements would make event the glamorous Mettaton proud.

For those more attuned to the Dark World, the very talented Trevor Alan Gomes, together with Toby Fox, recently released DELTARUNE Piano Collections, Vol. 1 that covers the best tracks from Deltarune Chapters 1 and 2.

A Full Undertale Fangame – Undertale Yellow!

Finally, a fan-made prequel to Undertale is available in the form of Undertale Yellow!

MasterSwordRemix and his team have created a full-length follow-up to the friendly RPG where nobody has to die by putting the spotlight on the child Clover’s journey in the Underground.

A prequel where DETERMINATION meets JUSTICE, this tale features locales and characters new and old – including our favorite bird brain Martlet!

Our friends at Hey Poor Player also spoke with MasterSwordRemix about Undertale Yellow – learn more with their interview!