ESRB Rating: E - Everyone Genre: Family & Education System Requirements: Mac: 1.25 GHz, G4, Mac OSX 10.3 or higher, 256 MB RAM, 60 MB free hard disk space, 4x CD-ROM drive, graphics 32 MB ATI or nVidia graphics card with Open GL 1.3 or higher PC: 800 MHz CPU, 128 MB RAM, DirectX 8 compatible graphics card with 32 MB RAM, (TNT2 or comparable,) DirectX 8 compatible soundcard, 60 MB free disk space; 2x CD-ROM drive, Win 98/ME/2000/XP/Vista Features: Build imaginative machines in this creative and addictively fun brainteaser. Turn cranks, rotate gears, pull levers, and more to build unique contraptions. Solve more than 200 challenging puzzles and put your machines to work. The physics engine allows for air-pressure, electricity, gravity, and particle effects. Experiment with gears, robots, explosives, and more in your own virtual...