LemonArcade
Sprunki is a fan-made mod of Incredibox, the music-mixing game created in 2009 by the French studio So Far So Good, founded by Allan Durand, Romain Delambily and musician Paul Malburet. Incredibox itself lets players drag beatboxing sounds onto a lineup of characters to build a layered track; Sprunki takes that exact mixing system and reskins it with its own cast of simple, blob-like green characters and a fresh set of sound packs, built first by a Thai teenager working under the name NyankoBfLol. It launched on Scratch around August 2024 and, unlike most Incredibox mods, exploded far beyond that community by the end of the year, getting unofficially reuploaded to dozens of browser game portals.
The core loop is identical to the game it is built on: drag an icon representing a beat, melody, effect or vocal line onto one of the characters on screen, and that character starts looping the sound continuously. Layer enough of them together and the individual loops turn into a full track with drums, bassline, melody and vocals all running at once. Removing a sound is as simple as clicking the character carrying it, so building and rebuilding a mix costs nothing and encourages constant experimentation rather than committing to one combination. Because every loop is pre-mixed to stay in time and in key with the others, even a combination chosen at random tends to sound coherent, which is a large part of why the format works for players with no music background at all.
What gives Sprunki its own identity within the wider Incredibox mod scene is a twist baked into the mix itself: placing the game's final, specific sound onto the last available character — commonly referred to by the community as Black — flips the whole game's look and audio from its bright, cartoonish default into a considerably darker, horror-tinged version. That single reveal, more than the reskinned character art, is what turned Sprunki from just another Incredibox mod into a genre of its own, spawning further fan mods that lean even harder into the horror angle.
Because it runs on the same drag-and-drop foundation as Incredibox, there is no fail state, no score and no time limit — the entire point is composing something that sounds good to you, then sharing or replaying it. That makes it as much a creative toy as a game, closer in spirit to a loop-based music sequencer aimed at people with no music production background than to a traditional browser game with levels or objectives.
It suits players who enjoyed Incredibox's mixing formula and want a different visual style and sound palette to experiment with, as well as anyone curious about the horror-mode reveal that made Sprunki a talking point outside the usual Incredibox audience. It is worth being upfront that this is not an official Incredibox release: the original creator has said no further updates are planned, and the version that spread across the web is one of many unofficial copies of that original Scratch project. That unofficial status is also why so many similarly named variants exist across different sites — Sprunki's success on Scratch inspired a wave of further mods from other fan creators, each tweaking the character art, sound packs or horror twist in its own direction.
On LemonArcade, Sprunki runs free in the browser on desktop and mobile with drag-and-drop on desktop and tap-and-drag on touchscreens, no download or account required. A session can be as short as a couple of minutes to try one combination or stretch much longer while chasing the perfect layered mix, and since there is nothing to fail, it is approachable for players of any age or musical background.