Im starting a game, but have a problem with a level designer. Are there any, preferably free, easy to use level designers i can use to make my maps for a FPS game? Im not looking for a terrain editor as I need prefabs, but my maps arent only going to be inside either. Thanks in advanced, Sysem

QuArk comes to mind for an all purpose level design application.

FreeWorld3d is nice terrain editor that runs for US$30.