Quell Memento is the latest from the Quell line of puzzles. They're all very good tilt maze games.
The object in Quell Memento is to pick up all the tokens. There are wormholes, and spikes that will kill you. All of the puzzles are challenging. The overall theme, graphics, interplay - very slick.
There are 150 puzzles - all in an old house. (If you've been following this blog, you must know that I turn off the volume and ignore whatever story is behind the puzzles.)