Undertale creator Toby Fox released the first two chapters of Deltarune for free.
Deltarune Chapters 3 and 4 Will Be Released Before Chapter 5 - Siliconera
Deltarune Will Release Earlier Than Expected, But Have Less Content At Launch - Geek Parade
My prediction for the chapter 4 and 5 dark world locations : r/Deltarune
Is this real? : r/Deltarune
Deltarune will be available to purchase once chapter 4 is done - “no more waiting” says Toby Fox
Chapter 4 be like : r/Deltarune
Deltarune Chapters 3 and 4 Will Be Released Before Chapter 5 - Siliconera
DELTARUNE Chapters 3 & 4 Will Now Release After Chapter 4 Completes Development, Chapter 5 Still “Far Off” – NintendoSoup
DELTARUNE Chapter 3 “nearing completion,” paid chapters to launch once Chapter 4 is complete - Gematsu
Joe Danger Special Edition Review - The Down On His Luck Stuntman Finally Lands On XBLA - Game Informer
Deltarune Chapter 4 leaked cutscene screenshots : r/Deltarune