Meet the Turtle rover: an open source land drone with a HD camera, robotic arm, and ability to take on rough terrain. Turtle runs for 4 hours continuously and has a WiFi range of 200m. Its camera is ready for livestreaming. The robot combines with your GoPro, DSLR camera, light, and other gear to let you explore tunnels and anywhere else.
You can customize the software and use custom modules to prepare your robot for specific missions. This NASA inspired land drone is getting funded on Kickstarter.