We see quite some space walking and space sailing games, but Astronaut Spacewalk is the only realistic-looking simulator game on iOS. it's a hardcore simulation that puts you in the space boots of a NASA astronaut as he takes on several docking and retrieval missions. In order to succeed, you'll have to take the game pretty seriously and appreciate mechanics like yaw. And thrust. And gravity. Take a look how you can fee space walking on your iPhone.
The mission depicted in the video requires players to find debris floating around the ship and bring it back to the shuttle's cargo bay. The final game will have 20 missions that require you to do things like make repairs on the Hubble telescope, Skylab, and MIR.