Duke Nukem: Critical Mass is a shooter game developed by Frontline Studios and published by Deep Silver for the Nintendo DS. A version for the PlayStation Portable began development, however... Read allDuke Nukem: Critical Mass is a shooter game developed by Frontline Studios and published by Deep Silver for the Nintendo DS. A version for the PlayStation Portable began development, however was never released.Duke Nukem: Critical Mass is a shooter game developed by Frontline Studios and published by Deep Silver for the Nintendo DS. A version for the PlayStation Portable began development, however was never released.