Colin Northway released Fantastic Contraption in 2008, a physics-based building puzzle that handed players a small set of wheels, rods, and building pieces and asked them to construct a working machine capable of carrying a pink shape into a walled-off goal area — with no fixed solution and no single correct machine design.

A Puzzle Game Without a Single Right Answer

Where most Flash puzzle games rewarded finding the one intended solution, Fantastic Contraption's open building system meant that any workable machine counted as success, and players routinely solved the same level with wildly different contraptions — some elegant, some chaotic — all validated by the same underlying physics engine.

A Solution-Sharing Community Before It Was Common

The game let players upload and browse each other's solutions to every level, turning creative machine-building into a small community sport in its own right and giving Fantastic Contraption a replay value most single-player Flash puzzles couldn't match, since no two players' browsing sessions looked quite the same.

Fantastic Contraption's open-ended physics sandbox proved influential enough that Northway Games built a full virtual-reality remake in 2017, carrying the same wheels-and-rods building concept onto Oculus and Vive years after the original Flash version's release.

Its willingness to let players invent their own answers, rather than search for a designer's intended one, made Fantastic Contraption one of the more quietly influential physics puzzles to come out of the Flash era.