Undertale developer Toby Fox assures fans that Deltarune chapter 4 is underway, 'I don't want anyone to burn out waiting for this'

A white cartoon dog smiling
(Image credit: Toby Fox)

Undertale developer Toby Fox has confirmed that work on the next chapter of his new game, Deltarune, is going smoothly. While there's no confirmed release date yet for chapters 3 and 4, he does confirm that the dev team is making great progress.

"Chapter 4 development is going better than ever," Fox says in a newsletter. "We are on track to meet our internal deadline. The new hires are already making a great difference to improve the atmosphere and feel of the chapter. I feel really good about this, champ."

After hiring a new producer and inviting new talent to work on the project, things seem to be going great for Deltarune. Fox even outlined the current progress, which included most of the cutscenes being finished, with only a few of the tougher ones left and a couple of others that need a bit of polish. The work on all the attacks and battles is also mostly done, but there's still some tweaking needed "to improve the flow of the bosses," Fox says. 

The overworld also only needs 10 more maps and some polish: "A kind of complicated gimmick nearly has all of its iterations made," Fox says. "Then there's whatever needs to go in those 10 maps and one more thing. (A gimmick is something like the teacup ride from Chapter 2.)"

However, just because the groundwork is almost done, doesn't mean that Chapter 4 will be ready anytime soon. Fox points out that tweaking the game's pacing and adjusting its difficulty can take an "unknown amount of time," so it's best not to get your hopes up for a round-the-corner release. 

"Even if Chapter 4 is completed smoothly, there may be surprise factors, so we're not at the point where we can make a solid promise," Fox continues. "That being said, we will let you guys know as soon as we can! I can't wait for you guys to see more of the moments and characters I've had in my head for the past eight years." 

Chapters 3 and 4 will be released together, and the last time we heard anything about Chapter 3's progress was October 2023, as Fox said in another newsletter that it was "pretty much content complete." Considering that the first two chapters were released separately and were three years apart, it seems like Fox and the rest of the team have picked up the pace since the surprise release of Chapter 1 in 2018

Elie Gould
News Writer

Elie is a news writer with an unhealthy love of horror games—even though their greatest fear is being chased. When they're not screaming or hiding, there's a good chance you'll find them testing their metal in metroidvanias or just admiring their Pokemon TCG collection. Elie has previously worked at TechRadar Gaming as a staff writer and studied at JOMEC in International Journalism and Documentaries – spending their free time filming short docs about Smash Bros. or any indie game that crossed their path.

Read more
Deltarune
Toby Fox is still working on more Deltarune, folks, game development is just complicated
Yuji Horii, creator of Dragon Quest, smiles next to some characters from the series.
Dragon Quest 12 is still coming, says Yuji Horii, but they're determined to make a game 'worthy of the posthumous work' of the late Akira Toriyama and composer Koichi Sugiyama
Diablo 4 screenshot
Diablo 4's second expansion won't be out until 2026
Terraria Slimes
Terraria creator jokes that the 1.4.5 update may not be the last one after all: 'Terraria will never die as long as there is one last final update'
Hollow Knight: Silksong — character art of Hornet, Silksong's protagonist, brandishing her weapon
Silksong's weary hollows tossed another scrap of hope from Xbox on high, as a blog post namedrops it next to other 'upcoming games'
Shadow the Hedgehog readying an electrifying punch in Sonic the Hedgehog 3.
Mere months after Sonic the Hedgehog 3's release, we already have an exact date for its sequel
Latest in RPG
Person battling bizarre four-eyed monster with stylish UI elements surrounding them
Persona and Metaphor: ReFantazio's UI designer is open to accessibility options for players who find the stylish menus overstimulating: 'That is something we understand we'll need to work on and provide in the future'
Like a Dragon: Infinite Wealth money farm - Super Crazy Delivery
Like a Dragon series director sums up why sidequests are essential to a great RPG with a single metaphor: 'a good main dish alone will not earn you a Michelin star'
Image of a sweetroll with a candle in it
Bethesda marks Oblivion's 19th with a sweetroll, a candle, and absolutely no happy birthday gift for fans eager for the still-unannounced remaster
Fallout 76 ghoul screenshots
Getting to level 50 in Fallout 76 to become a ghoul actually isn't as daunting as it seems, which is why I created a new character
Koana, a main character in Final Fantasy 14: Dawntrail, stares thoughtfully at a book in his hands.
After a controversial coding slip-up fed stalkers info on their victim's alts, FF14 wipes the slate clean to try and fix its mistakes
Scorched person with their hands on their head
Ghoul players in Fallout 76 are starting to place their camps in the most radioactive areas of the map, and regular humans aren't happy: 'I had to inject 30+ radaway into my veins'
Latest in News
Team Fortress Spy being shocked
An FPS studio pulled its game from Steam after it got caught linking to malware disguised as a demo, but the dev insists it was actually the victim of a labyrinthine conspiracy
Neighbors Suburban Warfare screenshot a child aims a slingshot at a man from across a cul-de-sac.
A beta of backyard FPS Neighbors: Suburban Warfare is out now, and the balance discussion is hysterical: nerf trash can lids and children
Grand Theft Auto 6 trailer still - woman in the front seat of a car, looking out the back window while holding a wad of cash
The specter of a GTA 6 delay haunts the games industry: 'Some companies are going to tank' if they guess wrong, says analyst
Screenshot from Wreckfest 2
Wreckfest 2 has hit early access for your car-obliterating combat racing enjoyment
Alma, the handler from Monster Hunter Wilds, closes her eyes and looks a little disappointed.
Monster Hunter director joined an online hunt, carted first: 'I feel bad about that'
Image for
Warhammer 40,000: Darktide’s getting a new roguelite wave defense mode that sounds a whole lot like a souped-up take on Killing Floor