The Integral Trees

I read a book titled The Integral Trees by Larry Niven about a people who lived in a low-grav environment on these gigantic horizontal trees. They were adapted to freefall, very skinny and tall with toes like fingers. The world of aero-troopers is very similar to this story. There was no land everyone just lived in the trees. This was really cool. The people lacked the detail of Final Fantasy but the backgrounds,custumes and battle scenes are excellent. IMO this is Mark Hamil's best voice-work to date.