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Deltarune: Chapter 2 is the next installment of the sequel to beloved indie darling Undertale...in a different world! This time around, two more classmates join the protagonists in their adventure as they, too, discover a mysterious world hidden behind a door, called the "Cyber World". Players with no save data will be able to start right at Chapter 2. “As long as you generally remember what happened story-wise, you’ll be fine,” the developers said in an FAQ.
The story follows a human named Kris who lives in a world inhabited by monsters. Kris and a classmate named Susie fall into an unknown place called the "Dark World" where they meet Ralsei, who informs them that they are heroes destined to save the world. The trio meets various beings who call themselves "Darkners" during a prophesied quest to seal the duplicate Dark Fountain. Mainly through the combat system, the player navigates through different kinds of bullet hell attacks by enemies, which can be resolved peacefully or through violence.
Dive into the parallel story to UNDERTALE! Fight or spare your way through action-packed battles as you explore a mysterious world alongside an endearing cast of new and familiar characters.
A chapter for Deltarune. It released alongside chapter 3.
The fifth chapter of Deltarune, released in June 2026.
A chapter for Deltarune. It released alongside chapter 4.
The seventh and final chapter of Deltarune.
An upcoming chapter for Deltarune.
Two fights that were featured in the UNDERTALE 10th Anniversary event, released after the event.
In the words of its creator, “Arn’s Winter Quest has been a labor of love for me for two months, and rivals those hacks such as Hat Quest and EarthBound 2.5: Electric Boogaloo Joint Jive. It has a lot of fun inside jokes, an incoherent story, and all new battle graphics. This hack is basically linear Dragon Warrior with a bunch of humor thrown in, so if you like fighting and you like funny and you like very hard viewtiful fun time hacks, then don’t play this hack because it’ll satisfy your cravings and your head will probably explode.”