Planets without technology that would lead it's sapient beings from a "dark age" before space travel are considered Pre-Industrial Planets. This is a different definition than the earth's pre-industrial revolution, because it only implies the time before printing and simple mechanics. Here are a few in no particular order.
-Poppula: Bronze Age, Species: Invertacrons
-Tobias I: Medieval, Species: Nameless Sapient Bovines
-Eos: Egyptian Type, Species: Sapient Insectoids
-Promos: Tribal Bronze Age, Species: Tulurians (Sapient Reptillians)
-Florence II: Colonial (Mounted Transportation, Gaslight, Seafaring), Species: Lucites (Sapient Theropods)
-Kiris: Theological Caste System (Religion dominates all forms of life, determines your place), Species: Kirians (Sapient Humanoid).