Desktop browsers
Mouse or trackpad: Stack Jump 3D loads straight into the page on desktop Chrome, Edge, Firefox and Safari with no download or plugin. Controls used: Tap / left mouse button, Drag.

Adventure game
Hop from stack to stack and climb as high as your timing allows in a clean, focused 3D jumping challenge.
Stack Jump 3D is a vertical timing test built from floating blocks. You launch the character upward, land clean on the next stack, and keep the rhythm going as the platforms sit further apart and drift more sharply. Nothing here needs explaining twice, which is why the height record becomes an exercise in concentration rather than reflex.
This title is best suited to a short focus-building timing challenge.
Mouse or trackpad: Stack Jump 3D loads straight into the page on desktop Chrome, Edge, Firefox and Safari with no download or plugin. Controls used: Tap / left mouse button, Drag.
Touch controls: Stack Jump 3D is driven by pointer input, which maps to tap and drag on a touch screen.
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