Jonathon Fowler is the creator of a source port for Duke Nukem 3D to Windows and Linux named JFDuke3D. He also created a source port for Shadow Warrior named JFShadowWarrior, and most recently JFTekWar and JFWitchaven in 2024 among updates to the older ports since 2020. His ports were used as the basis for General Arcade's re-releases, including Duke Nukem 3D: Megaton Edition.