I completed Rochard, the other day, and my ending was horrible. It's not really relevant to the question, but I'll give a brief description anyway (spoilers):
Maximilian gets sucked into a vortex. Rochard and Skyler talk for a bit, and Skyler begins to say something about a mysterious excavation which took place on Earth a number of years ago, and involved both Maximilian and her uncle Floyd. Suddenly, a new vortex appears and both Rochard and Skyler are sucked into it. The camera pans down to Rochard's 'Helga' mining tool, dropped on the ground, which lays there with a red blinking light on it. Fade to credits.
So, understandably, I was left with a few questions. I'm wondering if it's possible to achieve different endings to the game, given that this ending was so terrible. Is this the only ending possible? Or are there multiple endings?