Cheat Fallout 3 - PC

Cheat Codes
Hit the Tilde (~) key to access the console and enter one of the following

tmm1 :
All mapmarkers

player.setlevel # :
changes leve to #, doesn't affect anything else.

modpca (s.p.e.c.i.a.l) # :
changes the chosen stat by adding the given number. e.g.lmodpca luck 3 would take your 5 luck to 8.

tgm :
God Mode

tcl :
No clipping mode

ENJOY IT :)