Souptoys includes a variety of physics-based objects which can be dragged from the "toybox" window onto the desktop, with the ability to be thrown and moved around with a computer mouse.

Some objects, such as balls, cannons, gears, titling platforms, and colored wooden blocks, allow for level-building and the construction of Rube Goldberg-like contraptions, which could then be saved as a "playset" file and uploaded to the Souptoys website for others to download.

While Souptoys overlays itself directly on to the player's screen, there is also an option to turn on a background which hides the desktop and any open programs with a blue checkerboard pattern.

"[3] Lifehacker praised the game as a "nice stress reliever for adults", but similarly mentioned "the potential to be the biggest productivity killer of all time.

"[5] Download.com editors' review compliments the number of pre-included playsets and verdicts that "the whole point of the game is experimentation".