An anonymous reader writes from a report via Engadget: In honor of Curiosity's fourth year on Mars, NASA has released a game. Engadget reports: "The glitch that shut down Curiosity in July was thankfully a temporary issue, else NASA would have mourned its loss rather than celebrating the rover's fourth year on Mars by releasing a game. It's simply called Mars Rover, and it's probably your only chance to pilot Curiosity. Mars Rover has a pretty straightforward gameplay -- you just have to press arrow keys to drive the vehicle and find underground pockets of water -- but it's harder than it seems. The virtual rover's wheels crack and break if they slam hard against rocks or heels, and when they do, it's game over. NASA derived these mechanics from Curiosity's actual mission and experiences on Mars."