to add shadows to every thing like tress props building etc

like mabye from geck are something? ive never used geck before but im wondering if it is possiable to mabye force that are something thank you

Not really. Only actors cast shadows, so pretty much the most realistic way to make everything cast shadows is to make everything an actor, which in itself isn't all that realistic.

Cipscis

ZOMG!
That would be awesome.....I think I'm gonna turn ALL the water in the game into a character, then make it hostile and see what happens

http://blogs.amctv.com/scifi-scanner/The_Abyss_560x330.jpg come to mind...