A dev on Minecraft-like Hytale has already used its creative tools to make a homebrew side-scroller

Notably, said developer is not a programmer.
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Steam's New Side Scroller with 'Very Positive' Reviews Is Free to Play

Kaelaverse: Pemascape, which has garnered Very Positive reviews and is completely free to play, is a new side-scroller on Steam based on a HoloID VTuber. As one of the largest indie-friendly gaming ...
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Fallout remade as a mega-violent 2D side-scroller, coming soon

Blending Fallout, Fallout 3, and Fallout New Vegas, a new 2D side-scroller where you roam the wasteland gibbing ghouls with a gatling laser is currently in the works, transforming the Bethesda RPG ...