Tobyfox Strikes Again: Deltarune Becomes a Massive Hit After Undertale

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Few titles have captured hearts and minds quite like Deltarune, the latest masterpiece from tobyfox, creator of the beloved Undertale. As of June 5, 2025, Deltarune has amassed nearly 10,000 user reviews on Steam, with an overwhelming 98% positive rating. Should this be a surprise? Not really, considering the first free chapters already earned significant recognition.

Deltarune first appeared with free chapters in 2018 and 2021, while the release of Chapters 3 and 4 on June 4, 2025 transformed Deltarune into a fully realized title. Priced at 24.99 € for Chapters 1-4, the game has not only justified its cost but exceeded expectations. It’s now one of Steam’s top-selling titles and ranked among the top-ten most played games after its latest update.

The game’s success stems from several key factors. Firstly, tobyfox’s signature storytelling remains a cornerstone. The narrative, set in a parallel universe to Undertale, introduces new characters like Kris, Susie, and Ralsei, while reimagining familiar faces such as Toriel and Sans. Deltarune also keeps the turn-based RPG mechanics from Undertale but with significant change. Its bullet-hell inspired battles, now integrated into the overworld, offer strategic twist.

Players praise Deltarune for its “incredible storytelling, well-written characters, and wonderful soundtrack”. Many note that despite being unfinished initially, it had “a lot of potential” and has already surpassed expectations with its latest chapters. The free-to-play model for the initial chapters also built a dedicated fanbase, which then supported the paid release of Chapters 3 and 4.

Looking ahead, Deltarune’s future is bright. With Chapters 5 and beyond still in development coming as free updates, players are eager to see how the story unfolds and what new challenges await. Perhaps this new model of integrating and finishing a game could be worthwhile, but maybe only in tobyfox’s case, given he’s already a well-received developer.