Following in Undertale's Footsteps: 'Deltarune' Hits 290K Concurrent Players with Chapter 5 Launch

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Deltarune image ©tobyfox
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Even just the announcement of the Chapter 5 release date caused a significant spike in concurrent players and sales rankings for 'Deltarune.' The actual impact of the launch was even greater, with the peak concurrent player count surpassing 290k on the day of release—an all-time high. This figure more than doubles the previous record of 130k set during the game's early launch phase.

Analysts suggest this record proves the strength of the fandom Deltarune has cultivated as an indie RPG, going beyond a simple launch-day effect. During its free demo phase, Deltarune recorded around 100k concurrent players, surpassing the all-time peak of 'Undertale.' Although the game transitioned to a paid model starting with Chapters 3+4, it has managed to attract even more users, achieving both commercial success and widespread buzz. Its Steam rating also remains 'Overwhelmingly Positive.' This indicates a virtuous cycle where trust in the content's quality drives both new chapter purchases and the return of existing players.

Beyond the Chapter 5 release, Toby Fox is accelerating work on future content. When announcing the Chapter 5 release date, he shared on his website that development for Chapter 6 is proceeding smoothly and mentioned that development for Chapter 7 could begin within the year. Unlike the early chapters, which faced criticism for their slow development pace, the team is now increasing efficiency for the later chapters. This is a significant point of optimism for fans who had grown accustomed to long gaps between releases. If the current trend of releasing one chapter per year continues, experts predict that the momentum in concurrent players and revenue will likely repeat with the next chapter.

Deltarune is the successor to 'Undertale,' which originated from the Mother series and earned acclaim for its unique narrative style and meta-theatrical direction. It is once again receiving high praise for the direction, design, and music established in its predecessor. However, the game does not officially support Korean, so fans in Korea are currently playing via community-made patches.

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June 25, 2026. Steam Chart ©INVEN

NEW | Upcoming Releases & Updates

■ Release | How to Grow a Black Hole

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How to Grow a Black Hole image ©Desolation Digital

'How to Grow a Black Hole' is an idle game where players feed matter to a black hole to increase its mass and compete on a global leaderboard. However, the game recently became embroiled in an AI controversy after some users alleged that its UI appeared to be AI-generated. Noah, the solo developer, denied these claims, stating that they created the UI, code, art, and design personally. They also emphasized that AI-generated content must be disclosed upon submission to Steam and that their game does not fall into that category. As cases of AI-related suspicion become more frequent, the threshold for verification that new indie titles must pass seems to be rising.

This article was originally written in Korean and translated with the help of NC AI. It was then edited by a native English-speaking editor. All AI-assisted translations are reviewed and refined by our newsroom. [Read Original]

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