Not all games need level editors. Doesn't make much sense for procedurally generated games. Level editors provided with game editors often aren't appropriate fo

Not all games need level editors. Doesn't make much sense for procedurally generated games. Level editors provided with game editors often aren't appropriate for a lot of games and they need custom editors anyway. A team making a run of the mill fps is probably going to go with something more established, like unity, unreal, source or cryengine.