Lost Deltarune
Lost Deltarune is a fan-made RPG based on the world of DELTARUNE. Set in an alternate Dark World, the game features turn-based bullet-hell combat, puzzle-solving, custom chiptune soundtracks, and an original…
Lost Deltarune is an indie developed by spoofymaru, released 3 May 2026 on PC (Microsoft Windows).
What Lost Deltarune is
Lost Deltarune is an indie game developed by spoofymaru and released in 2026. It is available on PC (Microsoft Windows) only.
The premise, in the publisher's words
Lost Deltarune is a fan-made RPG based on the world of DELTARUNE. Set in an alternate Dark World, the game features turn-based bullet-hell combat, puzzle-solving, custom chiptune soundtracks, and an original narrative centered on player choice and control.
How it plays
It is played from a bird view / isometric perspective. Its themes are horror and mystery. It is a single-player game with no multiplayer component.
What it launched against
Lost Deltarune launched on 3 May 2026, within three weeks of Pragmata, Replaced, Forza Horizon 6 and LEGO Batman: Legacy of the Dark Knight.
Released around the same time: Pragmata, Replaced, Forza Horizon 6, LEGO Batman: Legacy of the Dark Knight.
Official trailer
Sourced from the publisher’s YouTube channel. See all 3 videos →
Screenshots
All media
Quick answers
Lost Deltarune — frequently asked questions
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