So playing Blasphemer had me thinking what a good non-infringing Duke Nukem would be. It occured to me that one could move away from the snarky sarcastic Roddy Piper and Bruce Campbell thing for a more deadpan robotic character like Robocop or the T-1000.
That, or more pulp sci-fi like Buck Rogers, but that might be better for a free Blake Stone (which is unquestionably all GPL code).
It occurs that a deadpan reading would also allow replacement dialogue with the same literal meaning but a different emotional one. "Damn I'm good!" becomes "Procedure successful!" and "Damm, I'm looking good!" becomes "Visual inspection passed." Both affirmations, but the latter without the smarm.