I actually don't remember HOW I found this game, but I remember WHY I got into it.
Squash had expressed interest in playing a game that was as close to a kind of star trek bridge simulator as you'd get. With the captain in charge, the engineers, helmsmen and weapons officers all running around doing their thing to keep the ship running. So we were keeping an eye out for those kind of games. I had found one which was exactly that, a bridge simulator, I don't remember the name - but I don't think it turned out to be that great.
Then I stumbled onto this game, perhaps through a forum post on the Penny Arcade forums. I was in the middle of exam study so I mentioned it to Squash, we looked into it and it looked pretty interesting. If memory serves, we chipped in for a four pack. I couldn't play because of Uni, but Squash gave it a go and said it was exactly what we had been after. Once the semester was done I tried the game and he was right.
The rest is history.