Man I finally got past On A Rail, when I first bought it there was a linux bug that meant you had to drop the graphics detail or it would crash on a new loading screen. Then it wouldn't even start for 9 months, and when it got back to working I was playing other games and every time I looked at it the save game didn't work, I think I ran the same bit about 6 times.
You can see its a 16 year old engine though, when I got out in the open it was chugging along but still looked pretty dated.