In the future, intergalactic mail delivery has taken on a novel form: the mail is packed into spheres and blasted into the void by giant cannons. Networks of gravity generators adjust the paths of the mail spheres and guide them to their destinations. In your role as gravity technician, you must plan out new routes between the mail cannons and space stations, navigating your way around asteroid fields, black holes, space pirates, and other hazards of deep space.
A fun game with pleasant aesthetics and easy to pick up and learn. The title screen is a bit plain but I like the style of the game objects like wormholes, and the tutorial is perfect for showcasing the fundamentals of the obstacles, which are used together in interesting ways as the levels progress.
It plays well with a two-button mouse, but my Mac trackpad's secondary click doesn't seem to hold on the generators. It's not that much to work around if I can remember to keep a two-button mouse handy, but if the click-hold wasn't necessary then it'd be the perfect puzzler for firing up on my MacBook during some down-time.