It takes a special kind of puzzle game to gently inform you that you're baffled without defining the edges of that bafflement - a subtle waft of confusion, a hint of feeling stumped, a sense of deja ...

GameSpot may get a commission from retail offers. Imagine a piece of complex origami. You want to understand how it works, so you start looking for a place to begin unfolding it. With each corner of ...

There's a central control panel at the top. There are three green pumps--two in the lower section and one in the upper section. A couple of red tubes down below can also be rotated. You'll notice two ...